| aeroplane | (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: airplane, plane |
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| airplane | (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: aeroplane, plane |
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| aplanatic | (adjective) free from or corrected for spherical aberration | - |
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| aquaplane | (noun) a board that is pulled by a speedboat as a person stands on it and skims over the top of the water | - |
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| (verb) ride on an aquaplane | - |
| (verb) rise up onto a thin film of water between the tires and road so that there is no more contact with the road | - |
| biplane | (noun) old fashioned airplane; has two wings one above the other | - |
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| coplanar | (adjective) lying in the same plane | - |
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| counterplan | (noun) a plot intended to subvert another plot | Synonyms: counterplot |
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| deplane | (verb) get off an airplane | - |
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| eggplant | (noun) egg-shaped vegetable having a shiny skin typically dark purple but occasionally white or yellow | Synonyms: aubergine, mad apple |
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| (noun) hairy upright herb native to southeastern Asia but widely cultivated for its large glossy edible fruit commonly used as a vegetable | Synonyms: aubergine, brinjal, eggplant bush, garden egg, mad apple, Solanum melongena |
| emplane | (verb) board a plane | Synonyms: enplane |
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| enplane | (verb) board a plane | Synonyms: emplane |
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| esplanade | (noun) a long stretch of open level ground (paved or grassy) for walking beside the seashore | - |
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| exoplanet | (noun) A planet which exists outside Earth's solar system | - |
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| explanandum | (noun) (logic) a statement of something (a fact or thing or expression) to be explained | Synonyms: explicandum |
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| explanans | (noun) (logic) statements that explain the explicandum; the explanatory premises | - |
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| explanation | (noun) thought that makes something comprehensible | - |
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| (noun) a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc. | Synonyms: account |
| (noun) the act of explaining; making something plain or intelligible | - |
| explanatory | (adjective) serving or intended to explain or make clear | - |
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| floatplane | (noun) a seaplane equipped with pontoons for landing or taking off from water | Synonyms: pontoon plane |
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| gangplank | (noun) a temporary bridge for getting on and off a vessel at dockside | Synonyms: gangboard, gangway |
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| gyroplane | (noun) an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller | Synonyms: autogiro, autogyro |
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| houseplant | (noun) any of a variety of plants grown indoors for decorative purposes | - |
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| hydroplane | (noun) an airplane that can land on or take off from water | Synonyms: seaplane |
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| (noun) a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds | Synonyms: hydrofoil |
| (verb) glide on the water in a hydroplane | Synonyms: seaplane |
| implant | (noun) a prosthesis placed permanently in tissue | - |
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| (verb) put firmly in the mind | Synonyms: plant |
| (verb) fix or set securely or deeply | Synonyms: embed, engraft, imbed, plant |
| (verb) become attached to and embedded in the uterus | - |
| implantation | (noun) the act of planting or setting in the ground | - |
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| (noun) a surgical procedure that places something in the human body | - |
| (noun) (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals | Synonyms: nidation |
| implanted | (adjective) (used especially of ideas or principles) deeply rooted; firmly fixed or held | Synonyms: deep-rooted, deep-seated, ingrained, planted |
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| interplanetary | (adjective) between or among planets | - |
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| leadplant | (noun) shrub of sandy woodlands and stream banks of western United States having hoary pinnate flowers and dull-colored racemose flowers; thought to indicate the presence of lead ore | Synonyms: Amorpha canescens, lead plant |
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| midplane | (noun) the median plane of the body (or some part of the body) | Synonyms: midline |
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| monoplane | (noun) an airplane with a single wing | - |
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| nanoplankton | (noun) microscopic organisms found in plankton | - |
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| peneplane | (noun) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements | Synonyms: peneplain |
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| phytoplankton | (noun) photosynthetic or plant constituent of plankton; mainly unicellular algae | - |
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| pieplant | (noun) long pinkish sour leafstalks usually eaten cooked and sweetened | Synonyms: rhubarb |
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| plan | (noun) scale drawing of a structure | Synonyms: architectural plan |
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| (noun) a series of steps to be carried out or goals to be accomplished | Synonyms: program, programme |
| (noun) an arrangement scheme | Synonyms: design |
| (verb) make plans for something | - |
| (verb) have the will and intention to carry out some action | Synonyms: be after |
| (verb) make or work out a plan for; devise | Synonyms: contrive, design, project |
| planar | (adjective) involving or having two dimensions | Synonyms: two-dimensional |
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| planaria | (noun) free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts | Synonyms: planarian |
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| planarian | (noun) free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts | Synonyms: planaria |
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| planate | (adjective) having been flattened | Synonyms: flattened |
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| planation | (noun) the process of erosion whereby a level surface is produced | - |
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| planchet | (noun) a flat metal disk ready for stamping as a coin | Synonyms: coin blank |
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| planchette | (noun) a triangular board supported on casters; when lightly touched with the fingertips it is supposed to spell out supernatural (or unconscious) messages | - |
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| plane | (adjective) having a surface without slope, tilt in which no part is higher or lower than another | Synonyms: flat, level |
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| (noun) a carpenter's hand tool with an adjustable blade for smoothing or shaping wood | Synonyms: carpenter's plane, woodworking plane |
| (noun) an aircraft that has a fixed wing and is powered by propellers or jets | Synonyms: aeroplane, airplane |
| (noun) a power tool for smoothing or shaping wood | Synonyms: planer, planing machine |
| (noun) (mathematics) an unbounded two-dimensional shape | Synonyms: sheet |
| (noun) a level of existence or development | - |
| (verb) cut or remove with or as if with a plane | Synonyms: shave |
| (verb) make even or smooth, with or as with a carpenter's plane | - |
| (verb) travel on the surface of water | Synonyms: skim |
| planeness | (noun) the property of having two dimensions | Synonyms: flatness, two-dimensionality |
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| planer | (noun) a power tool for smoothing or shaping wood | Synonyms: plane, planing machine |
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| planet | (noun) (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction | Synonyms: major planet |
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| (noun) any celestial body (other than comets or satellites) that revolves around a star | - |
| (noun) a person who follows or serves another | Synonyms: satellite |
| planetal | (adjective) of or relating to or resembling the physical or orbital characteristics of a planet or the planets | Synonyms: planetary |
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| planetarium | (noun) an apparatus or model for representing the solar systems | - |
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| (noun) an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome | - |
| (noun) a building housing an instrument for projecting the positions of the planets onto a domed ceiling | - |
| planetary | (adjective) of or relating to or resembling the physical or orbital characteristics of a planet or the planets | Synonyms: planetal |
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| (adjective) of or relating to or characteristic of the planet Earth or its inhabitants | Synonyms: terrestrial |
| (adjective) involving the entire earth; not limited or provincial in scope | Synonyms: global, world-wide, world, worldwide |
| (adjective) having no fixed course | Synonyms: erratic, wandering |
| planetesimal | (noun) one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system | - |
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| planetoid | (noun) any of numerous small celestial bodies that move around the sun | Synonyms: minor planet |
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| plangency | (noun) having the character of a loud deep sound; the quality of being resonant | Synonyms: resonance, reverberance, ringing, sonority, sonorousness, vibrancy |
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| plangent | (adjective) loud and resounding | - |
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| planimeter | (noun) a measuring instrument for measuring the area of an irregular plane figure | Synonyms: integrator |
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| plank | (noun) an endorsed policy in the platform of a political party | - |
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| (noun) a stout length of sawn timber; made in a wide variety of sizes and used for many purposes | Synonyms: board |
| (verb) cook and serve on a plank | - |
| (verb) cover with planks | Synonyms: plank over |
| (verb) set (something or oneself) down with or as if with a noise | Synonyms: flump, plonk, plop, plump, plump down, plunk, plunk down |
| planking | (noun) the work of covering an area with planks | - |
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| (noun) (nautical) a covering or flooring constructed of planks (as on a ship) | - |
| (noun) planks collectively; a quantity of planks | - |
| plankton | (noun) the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water | - |
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| planktonic | (adjective) of or relating to plankton | - |
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| planless | (adjective) aimlessly drifting | Synonyms: adrift, afloat, aimless, directionless, rudderless, undirected |
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| planned | (adjective) designed or carried out according to a plan | - |
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| (adjective) with planning and intention | Synonyms: aforethought, plotted |
| planner | (noun) a notebook for recording appointments and things to be done, etc. | - |
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| (noun) a person who makes plans | Synonyms: contriver, deviser |
| planning | (noun) an act of formulating a program for a definite course of action | - |
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| (noun) the act or process of drawing up plans or layouts for some project or enterprise | - |
| (noun) the cognitive process of thinking about what you will do in the event of something happening | Synonyms: preparation, provision |
| planoconcave | (adjective) flat on one side and concave on the other | - |
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| planoconvex | (adjective) flat on one side and convex on the other | - |
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| planographic | (adjective) of or relating to or involving planography | - |
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| planography | (noun) the process of printing from a surface on which the printing areas are not raised but are ink-receptive (as opposed to ink repellent) | Synonyms: planographic printing |
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| plant | (noun) (botany) a living organism lacking the power of locomotion | Synonyms: flora, plant life |
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| (noun) buildings for carrying on industrial labor | Synonyms: industrial plant, works |
| (noun) something planted secretly for discovery by another | - |
| (noun) an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience | - |
| (verb) put firmly in the mind | Synonyms: implant |
| (verb) put or set (seeds, seedlings, or plants) into the ground | Synonyms: set |
| (verb) fix or set securely or deeply | Synonyms: embed, engraft, imbed, implant |
| (verb) place something or someone in a certain position in order to secretly observe or deceive | - |
| (verb) set up or lay the groundwork for | Synonyms: constitute, establish, found, institute |
| (verb) place into a river | - |
| plantain | (noun) starchy banana-like fruit; eaten (always cooked) as a staple vegetable throughout the tropics | - |
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| (noun) a banana tree bearing hanging clusters of edible angular greenish starchy fruits; tropics and subtropics | Synonyms: Musa paradisiaca, plantain tree |
| (noun) any of numerous plants of the genus Plantago; mostly small roadside or dooryard weeds with elliptic leaves and small spikes of very small flowers; seeds of some used medicinally | - |
| plantal | (adjective) of or relating to plants | - |
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| plantar | (adjective) relating to or occurring on the undersurface of the foot | - |
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| plantation | (noun) garden consisting of a small cultivated wood without undergrowth | Synonyms: grove, orchard, woodlet |
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| (noun) an estate where cash crops are grown on a large scale (especially in tropical areas) | - |
| planted | (adjective) set in the soil for growth | - |
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| (adjective) (used especially of ideas or principles) deeply rooted; firmly fixed or held | Synonyms: deep-rooted, deep-seated, implanted, ingrained |
| planter | (noun) a decorative pot for house plants | - |
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| (noun) the owner or manager of a plantation | Synonyms: plantation owner |
| (noun) a worker who puts or sets seeds or seedlings into the ground | - |
| planthopper | (noun) related to the leafhoppers and spittlebugs but rarely damages cultivated plants | Synonyms: plant hopper |
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| plantigrade | (adjective) (of mammals) walking on the whole sole of the foot (as rabbits, raccoons, bears, and humans do) | - |
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| (noun) an animal that walks with the entire sole of the foot touching the ground as e.g. bears and human beings | Synonyms: plantigrade mammal |
| planting | (noun) the act of fixing firmly in place | - |
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| (noun) putting seeds or young plants in the ground to grow | - |
| (noun) a collection of plants (trees or shrubs or flowers) in a particular area | - |
| plantlet | (noun) a young plant or a small plant | - |
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| plantsman | (noun) an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants) | Synonyms: horticulturist |
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| planula | (noun) the flat ciliated free-swimming larva of hydrozoan coelenterates | - |
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| potamoplankton | (noun) plankton that inhabit rivers | - |
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| rataplan | (noun) the sound made by beating a drum | Synonyms: drumbeat, rub-a-dub |
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| replant | (verb) plant again or anew | - |
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| sailplane | (noun) aircraft supported only by the dynamic action of air against its surfaces | Synonyms: glider |
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| (verb) fly a plane without an engine | Synonyms: soar |
| sailplaning | (noun) the activity of flying a glider | Synonyms: glide, gliding, sailing, soaring |
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| seaplane | (noun) an airplane that can land on or take off from water | Synonyms: hydroplane |
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| (verb) glide on the water in a hydroplane | Synonyms: hydroplane |
| splanchnic | (adjective) relating to or affecting the viscera | Synonyms: visceral |
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| supplant | (verb) take the place or move into the position of | Synonyms: replace, supersede, supervene upon |
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| supplanter | (noun) one who wrongfully or illegally seizes and holds the place of another | Synonyms: usurper |
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| supplanting | (noun) act of taking the place of another especially using underhanded tactics | Synonyms: displacement |
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| swampland | (noun) low land that is seasonally flooded; has more woody plants than a marsh and better drainage than a bog | Synonyms: swamp |
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| tailplane | (noun) the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged | Synonyms: horizontal stabiliser, horizontal stabilizer |
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| transplant | (noun) the act of removing something from one location and introducing it in another location | Synonyms: transplantation, transplanting |
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| (noun) an operation moving an organ from one organism (the donor) to another (the recipient) | Synonyms: organ transplant, transplantation |
| (noun) (surgery) tissue or organ transplanted from a donor to a recipient; in some cases the patient can be both donor and recipient | Synonyms: graft |
| (verb) transfer from one place or period to another | Synonyms: transfer, transpose |
| (verb) place the organ of a donor into the body of a recipient | Synonyms: graft |
| (verb) lift and reset in another soil or situation | Synonyms: transfer |
| (verb) be transplantable | - |
| transplantable | (adjective) capable of being transplanted | - |
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| transplantation | (noun) the act of removing something from one location and introducing it in another location | Synonyms: transplant, transplanting |
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| (noun) an operation moving an organ from one organism (the donor) to another (the recipient) | Synonyms: organ transplant, transplant |
| transplanter | (noun) a gardener who moves plants to new locations | - |
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| transplanting | (noun) the act of removing something from one location and introducing it in another location | Synonyms: transplant, transplantation |
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| unplanned | (adjective) without apparent forethought or prompting or planning | - |
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| (adjective) not done with purpose or intent | Synonyms: unintentional, unwitting |
| unplanted | (adjective) not planted | - |
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| upland | (adjective) used of high or hilly country | Synonyms: highland |
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| (noun) elevated (e.g., mountainous) land | Synonyms: highland |
| warplane | (noun) an aircraft designed and used for combat | Synonyms: military plane |
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| xenotransplant | (noun) a surgical procedure in which tissue or whole organs are transferred from one species to another species | Synonyms: xenotransplantation |
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