| expensiveness | (noun) the quality of being high-priced | - |
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| experience | (noun) the content of direct observation or participation in an event | - |
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| (noun) the accumulation of knowledge or skill that results from direct participation in events or activities | - |
| (noun) an event as apprehended | - |
| experiment | (noun) the act of conducting a controlled test or investigation | Synonyms: experimentation |
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| (noun) a venture at something new or different | - |
| (noun) the testing of an idea | Synonyms: experimentation |
| experimentalism | (noun) an orientation that favors experimentation and innovation | - |
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| (noun) an empirical doctrine that advocates experimental principles | - |
| experimentation | (noun) the act of conducting a controlled test or investigation | Synonyms: experiment |
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| (noun) the testing of an idea | Synonyms: experiment |
| experimenter | (noun) a research worker who conducts experiments | - |
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| (noun) a person who enjoys testing innovative ideas | - |
| expert | (noun) a person with special knowledge or ability who performs skillfully | - |
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| expertise | (noun) skillfulness by virtue of possessing special knowledge | Synonyms: expertness |
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| expertness | (noun) skillfulness by virtue of possessing special knowledge | Synonyms: expertise |
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| extrospection | (noun) examination or observation of what is outside oneself, as opposed to introspection. | - |
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| fetoscope | (noun) a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat | Synonyms: foetoscope |
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| fiberscope | (noun) a flexible medical instrument involving fiber optics that is used to examine internal organs | - |
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| fibrinopeptide | (noun) peptide released from the amino end of fibrinogen by the action of thrombin to form fibrin during clotting of the blood | - |
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| fingerspelling | (noun) an alphabet of manual signs | Synonyms: finger spelling |
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| fissiped | (noun) terrestrial carnivores having toes separated to the base: dogs, cats, bears, badgers, raccoons | Synonyms: fissiped mammal |
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| fivepence | (noun) a coin worth five cents | - |
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| flapper | (noun) a young woman in the 1920s who flaunted her unconventional conduct and dress | - |
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| flipper | (noun) the flat broad limb of aquatic animals specialized for swimming | - |
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| (noun) a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater) | Synonyms: fin |
| fluoroscope | (noun) an X-ray machine that combines an X-ray source and a fluorescent screen to enable direct observation | Synonyms: roentgenoscope |
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| flypaper | (noun) paper that is poisoned or coated with a sticky substance to kill flies | - |
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| flyspeck | (noun) a tiny dark speck made by the excrement of a fly | - |
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| foetoscope | (noun) a stethoscope placed on the pregnant woman's abdomen to listen for the fetal heartbeat | Synonyms: fetoscope |
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| foreperson | (noun) the presiding member of the jury and the one who speaks on their behalf | - |
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| fourpence | (noun) a former English silver coin worth four pennies | Synonyms: groat |
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| frappe | (noun) a frozen dessert with fruit flavoring (especially one containing no milk) | Synonyms: ice |
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| (noun) thick milkshake containing ice cream | - |
| (noun) liqueur poured over shaved ice | - |
| freedperson | (noun) a person who has been freed from slavery | - |
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| freeperson | (noun) a person who is not a serf or a slave | - |
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| frippery | (noun) something of little value or significance | Synonyms: bagatelle, fluff, frivolity |
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| froghopper | (noun) a variety of spittlebug | - |
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| gabapentin | (noun) an anticonvulsant (trade name Neurontin) used to control some types of seizures in the treatment of epilepsy; also used to manage neuralgia caused by shingles | Synonyms: Neurontin |
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| gamekeeper | (noun) a person employed to take care of game and wildlife | Synonyms: game warden |
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| gape | (noun) a stare of amazement (usually with the mouth open) | - |
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| (noun) an expression of openmouthed astonishment | - |
| gastroscope | (noun) a type of endoscope for visually examining the stomach | - |
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| gatekeeper | (noun) someone who guards an entrance | Synonyms: door guard, doorkeeper, doorman, hall porter, ostiary, porter |
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| (noun) someone who controls access to something | - |
| genotype | (noun) the particular alleles at specified loci present in an organism | Synonyms: genetic constitution |
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| (noun) a group of organisms sharing a specific genetic constitution | - |
| goalkeeper | (noun) the defensive position on an ice hockey or soccer or lacrosse team who stands in front of the goal and tries to prevent opposing players from scoring | Synonyms: goalie, goaltender, netkeeper |
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| (noun) the soccer or hockey player assigned to protect the goal | Synonyms: goalie, goaltender, netkeeper, netminder |
| gospel | (noun) a doctrine that is believed to be of great importance | - |
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| (noun) the written body of teachings of a religious group that are generally accepted by that group | Synonyms: church doctrine, creed, religious doctrine |
| (noun) an unquestionable truth | Synonyms: gospel truth |
| (noun) folk music consisting of a genre of a cappella music originating with Black slaves in the United States and featuring call and response; influential on the development of other genres of popular music (especially soul) | Synonyms: gospel singing |
| gospeler | (noun) a preacher of the Christian gospel | Synonyms: evangelist, gospeller, revivalist |
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| gospeller | (noun) a preacher of the Christian gospel | Synonyms: evangelist, gospeler, revivalist |
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| gossiper | (noun) a person given to gossiping and divulging personal information about others | Synonyms: gossip, gossipmonger, newsmonger, rumormonger, rumourmonger |
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| granulocytopenia | (noun) an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes | Synonyms: agranulocytosis, agranulosis |
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| grape | (noun) a cluster of small projectiles fired together from a cannon to produce a hail of shot | Synonyms: grapeshot |
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| (noun) any of various juicy fruit of the genus Vitis with green or purple skins; grow in clusters | - |
| (noun) any of numerous woody vines of genus Vitis bearing clusters of edible berries | Synonyms: grape vine, grapevine |
| grapefruit | (noun) large yellow fruit with somewhat acid juicy pulp; usual serving consists of a half | - |
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| (noun) citrus tree bearing large round edible fruit having a thick yellow rind and juicy somewhat acid pulp | Synonyms: Citrus paradisi |
| grapeshot | (noun) a cluster of small projectiles fired together from a cannon to produce a hail of shot | Synonyms: grape |
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| grapevine | (noun) gossip spread by spoken communication | Synonyms: pipeline, word of mouth |
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| (noun) any of numerous woody vines of genus Vitis bearing clusters of edible berries | Synonyms: grape, grape vine |
| grasshopper | (noun) terrestrial plant-eating insect with hind legs adapted for leaping | Synonyms: hopper |
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| (noun) a cocktail made of creme de menthe and cream (sometimes with creme de cacao) | - |
| greenskeeper | (noun) someone responsible for the maintenance of a golf course | - |
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| gripe | (noun) informal terms for objecting | Synonyms: beef, bitch, kick, squawk |
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| gripes | (noun) acute abdominal pain (especially in infants) | Synonyms: colic, griping, intestinal colic |
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| grippe | (noun) an acute febrile highly contagious viral disease | Synonyms: flu, influenza |
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| grope | (noun) the act of groping; and instance of groping | - |
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| groundkeeper | (noun) someone who maintains the grounds (of an estate or park or athletic field) | Synonyms: groundskeeper, groundsman |
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| groundskeeper | (noun) someone who maintains the grounds (of an estate or park or athletic field) | Synonyms: groundkeeper, groundsman |
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| groundspeed | (noun) the speed of an aircraft relative to the ground | - |
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| grouper | (noun) usually solitary bottom sea basses of warm seas | - |
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| (noun) flesh of a saltwater fish similar to sea bass | - |
| guimpe | (noun) a short blouse with sleeves that is worn under a jumper or pinafore dress | - |
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| (noun) a piece of starched cloth covering the shoulders of a nun's habit | - |
| gulper | (noun) a drinker who swallows large amounts greedily | Synonyms: guzzler |
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| guttersnipe | (noun) a child who spends most of his time in the streets especially in slum areas | Synonyms: street urchin |
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| gymnosperm | (noun) plants of the class Gymnospermae having seeds not enclosed in an ovary | - |
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| gyroscope | (noun) rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction | Synonyms: gyro |
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| haematocytopenia | (noun) an abnormally low number of red blood cells in the blood | Synonyms: hematocytopenia |
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| halfpenny | (noun) an English coin worth half a penny | Synonyms: ha'penny |
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| halfpennyworth | (noun) the amount that can be bought for a halfpenny | Synonyms: ha'p'orth |
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| haloperidol | (noun) tranquilizer (trade name Haldol) used to treat some psychotic disorders and Tourette's syndrome | Synonyms: Haldol |
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| hamper | (noun) a basket usually with a cover | - |
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| (noun) a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner) | Synonyms: bond, shackle, trammel |
| handicapped | (noun) people collectively who are crippled or otherwise physically handicapped | Synonyms: disabled |
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| handicapper | (noun) someone who sets the betting odds based on calculations of the outcome of a contest (especially a horse race) | Synonyms: odds-maker |
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| haplotype | (noun) (genetics) a combination of alleles (for different genes) that are located closely together on the same chromosome and that tend to be inherited together | - |
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| happening | (noun) an event that happens | Synonyms: natural event, occurrence, occurrent |
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| happenstance | (noun) an event that might have been arranged although it was really accidental | Synonyms: coincidence |
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| harper | (noun) someone who plays the harp | Synonyms: harpist |
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| hawsepipe | (noun) the hole that an anchor rope passes through | Synonyms: hawse, hawsehole |
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| heliotrope | (noun) green chalcedony with red spots that resemble blood | Synonyms: bloodstone |
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| heliotype | (noun) duplicator consisting of a gelatin plate from which ink can be taken to make a copy | Synonyms: hectograph |
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| helper | (noun) a person who helps people or institutions (especially with financial help) | Synonyms: benefactor |
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| (noun) a person who contributes to the fulfillment of a need or furtherance of an effort or purpose | Synonyms: assistant, help, supporter |
| hematocytopenia | (noun) an abnormally low number of red blood cells in the blood | Synonyms: haematocytopenia |
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| herpes | (noun) any of the animal viruses that cause painful blisters on the skin | Synonyms: herpes virus |
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| (noun) viral diseases causing eruptions of the skin or mucous membrane | - |
| herpetologist | (noun) a zoologist who studies reptiles and amphibians | - |
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| herpetology | (noun) the branch of zoology concerned with reptiles and amphibians | - |
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| hippeastrum | (noun) amaryllis of tropical America often cultivated as a houseplant for its showy white to red flowers | Synonyms: Hippeastrum puniceum |
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| hodoscope | (noun) (physics) scientific instrument that traces the path of a charged particle | - |
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| hollygrape | (noun) ornamental evergreen shrub of Pacific coast of North America having dark green pinnate leaves and racemes of yellow flowers followed by blue-black berries | Synonyms: holly-leaves barberry, Mahonia aquifolium, mountain grape, Oregon grape, Oregon holly grape |
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| holotype | (noun) the original specimen from which the description of a new species is made | Synonyms: type specimen |
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| honeycreeper | (noun) small bright-colored tropical American songbird with a curved bill for sucking nectar | - |
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| (noun) small to medium-sized finches of the Hawaiian islands | Synonyms: Hawaiian honeycreeper |
| hope | (noun) one of the three Christian virtues | - |
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| (noun) grounds for feeling hopeful about the future | Synonyms: promise |
| (noun) the general feeling that some desire will be fulfilled | - |
| (noun) a specific instance of feeling hopeful | - |
| (noun) someone (or something) on which expectations are centered | - |
| hopeful | (noun) an ambitious and aspiring young person | Synonyms: aspirant, aspirer, wannabe, wannabee |
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| hopefulness | (noun) the feeling you have when you have hope | - |
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| (noun) full of hope | - |
| hopelessness | (noun) the despair you feel when you have abandoned hope of comfort or success | - |
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| hoper | (noun) a person who hopes | - |
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| hopper | (noun) (baseball) a hit that travels along the ground | Synonyms: ground ball, groundball, grounder |
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| (noun) terrestrial plant-eating insect with hind legs adapted for leaping | Synonyms: grasshopper |
| (noun) funnel-shaped receptacle; contents pass by gravity into a receptacle below | - |
| (noun) a machine used for picking hops | Synonyms: hop-picker |
| (noun) someone who hops | - |
| hornpipe | (noun) a British solo dance performed by sailors | - |
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| (noun) an ancient (now obsolete) single-reed woodwind; usually made of bone | Synonyms: pibgorn, stockhorn |
| (noun) music for dancing the hornpipe | - |
| horoscope | (noun) a diagram of the positions of the planets and signs of the zodiac at a particular time and place | - |
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| (noun) a prediction of someone's future based on the relative positions of the planets | - |
| hosepipe | (noun) a flexible pipe for conveying a liquid or gas | Synonyms: hose |
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| hotelkeeper | (noun) an owner or manager of hotels | Synonyms: hosteller, hotel manager, hotelier, hotelman |
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| housekeeper | (noun) a servant who is employed to perform domestic task in a household | - |
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| hygroscope | (noun) hygrometer that shows variations in the relative humidity of the atmosphere | - |
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| hype | (noun) blatant or sensational promotion | Synonyms: ballyhoo, hoopla, plug |
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| hyperacidity | (noun) excessive acidity | - |
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| hyperactivity | (noun) a condition characterized by excessive restlessness and movement | - |
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| hyperacusia | (noun) abnormal acuteness of hearing due to increased irritability of the sensory neural mechanism; characterized by intolerance for ordinary sound levels | Synonyms: auditory hyperesthesia, hyperacusis |
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