| adenopathy | (noun) a glandular disease or enlargement of glandular tissue (especially of the lymph glands) | - |
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| adenosine | (noun) (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP | - |
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| adenosis | (noun) a disorder of the glands of the body | Synonyms: gland disease, glandular disease, glandular disorder |
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| adenovirus | (noun) any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye | - |
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| adequateness | (noun) the quality of being able to meet a need satisfactorily: | Synonyms: adequacy |
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| adherence | (noun) faithful support for a cause or political party or religion | Synonyms: adhesion, attachment |
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| (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adhesion, adhesiveness, bond |
| adherent | (adjective) sticking fast | - |
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| (noun) someone who believes and helps to spread the doctrine of another | Synonyms: disciple |
| adhesiveness | (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adherence, adhesion, bond |
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| adience | (noun) (psychology) an urge to accept or approach a situation or an object | - |
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| adient | (adjective) characterized by acceptance or approach | - |
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| adiposeness | (noun) having the property of containing fat | Synonyms: adiposity, fattiness |
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| adjacency | (noun) the attribute of being so near as to be touching | Synonyms: contiguity, contiguousness |
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| adjacent | (adjective) nearest in space or position; immediately adjoining without intervening space | Synonyms: next, side by side |
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| (adjective) having a common boundary or edge; abutting; touching | Synonyms: conterminous, contiguous, neighboring, neighbouring |
| (adjective) near or close to but not necessarily touching | - |
| adjournment | (noun) the termination of a meeting | Synonyms: dissolution |
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| (noun) the act of postponing to another time or place | - |
| adjustment | (noun) the act of making something different (as e.g. the size of a garment) | Synonyms: alteration, modification |
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| (noun) the act of adjusting something to match a standard | Synonyms: readjustment, registration |
| (noun) making or becoming suitable; adjusting to circumstances | Synonyms: accommodation, fitting |
| (noun) an amount added or deducted on the basis of qualifying circumstances | Synonyms: allowance |
| (noun) the process of adapting to something (such as environmental conditions) | Synonyms: adaptation, adaption |
| admirableness | (noun) admirable excellence | Synonyms: admirability, wonderfulness |
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| admonishment | (noun) a firm rebuke | Synonyms: admonition, monition |
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| adolescence | (noun) in the state that someone is in between puberty and adulthood | - |
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| (noun) the time period between the beginning of puberty and adulthood | - |
| adolescent | (adjective) relating to or peculiar to or suggestive of an adolescent | - |
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| (adjective) in the state of development between puberty and maturity | - |
| (adjective) displaying or suggesting a lack of maturity | Synonyms: jejune, juvenile, puerile |
| (adjective) being of the age 13 through 19 | Synonyms: teen, teenage, teenaged |
| (noun) a juvenile between the onset of puberty and maturity | Synonyms: stripling, teen, teenager |
| adorableness | (noun) extreme attractiveness | Synonyms: adorability |
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| adornment | (noun) the action of decorating yourself with something colorful and interesting | - |
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| (noun) a decoration of color or interest that is added to relieve plainness | - |
| adrenal | (adjective) of or pertaining to the adrenal glands or their secretions | - |
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| (adjective) near the kidneys | - |
| (noun) either of a pair of complex endocrine glands situated near the kidney | Synonyms: adrenal gland, suprarenal gland |
| adrenalectomy | (noun) surgical removal of one or both adrenal glands | Synonyms: suprarenalectomy |
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| adrenaline | (noun) a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action | Synonyms: Adrenalin, epinephrin, epinephrine |
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| adrenarche | (noun) the increase in activity of the adrenal glands just before puberty | - |
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| adrenergic | (adjective) relating to epinephrine (its release or action) | Synonyms: sympathomimetic |
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| (noun) drug that has the effects of epinephrine | Synonyms: adrenergic drug |
| adrenocortical | (adjective) of or derived from the cortex of the adrenal glands | - |
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| adrenocorticotrophic | (adjective) stimulating or acting on the adrenal cortex | Synonyms: adrenocorticotropic |
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| adrenocorticotrophin | (noun) a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex | Synonyms: ACTH, adrenocorticotrophic hormone, adrenocorticotropic hormone, adrenocorticotropin, corticotrophin, corticotropin |
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| adrenocorticotropic | (adjective) stimulating or acting on the adrenal cortex | Synonyms: adrenocorticotrophic |
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| adrenocorticotropin | (noun) a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex | Synonyms: ACTH, adrenocorticotrophic hormone, adrenocorticotrophin, adrenocorticotropic hormone, corticotrophin, corticotropin |
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| adrenosterone | (noun) a steroid having androgenic activity; obtained from the cortex of the adrenal gland | - |
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| adsorbent | (adjective) having capacity or tendency to adsorb or cause to accumulate on a surface | Synonyms: adsorptive, surface-assimilative |
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| (noun) a material having capacity or tendency to adsorb another substance | Synonyms: adsorbent material |
| advancement | (noun) the act of moving forward (as toward a goal) | Synonyms: advance, forward motion, onward motion, procession, progress, progression |
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| (noun) gradual improvement or growth or development | Synonyms: progress |
| (noun) encouragement of the progress or growth or acceptance of something | Synonyms: furtherance, promotion |
| advent | (noun) arrival that has been awaited (especially of something momentous) | Synonyms: coming |
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| adventitia | (noun) an enveloping or covering membrane or layer of body tissue | Synonyms: tunic, tunica |
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| adventitial | (adjective) of or pertaining to the adventitia | - |
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| adventitious | (adjective) associated by chance and not an integral part | - |
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| adventive | (adjective) not native and not fully established; locally or temporarily naturalized | - |
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| adventure | (noun) a wild and exciting undertaking (not necessarily lawful) | Synonyms: dangerous undertaking, escapade, risky venture |
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| (verb) put at risk | Synonyms: hazard, jeopardize, stake, venture |
| (verb) take a risk in the hope of a favorable outcome | Synonyms: chance, gamble, hazard, risk, run a risk, take a chance, take chances |
| adventurer | (noun) a person who enjoys taking risks | Synonyms: venturer |
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| (noun) someone who travels into little known regions (especially for some scientific purpose) | Synonyms: explorer |
| adventuresome | (adjective) willing to undertake or seeking out new and daring enterprises | Synonyms: adventurous |
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| adventuress | (noun) a woman adventurer | - |
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| adventurism | (noun) recklessness in politics or foreign affairs | - |
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| adventuristic | (adjective) of or pertaining to adventurism | - |
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| adventurous | (adjective) willing to undertake or seeking out new and daring enterprises | Synonyms: adventuresome |
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| adventurousness | (noun) the trait of being adventurous | Synonyms: venturesomeness |
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| advertence | (noun) the process of being heedful | Synonyms: advertency |
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| advertency | (noun) the process of being heedful | Synonyms: advertence |
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| advertent | (adjective) giving attention | Synonyms: heedful |
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| advertently | (adverb) in a careful deliberate manner | Synonyms: heedfully, mindfully |
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| advertisement | (noun) a public promotion of some product or service | Synonyms: ad, advert, advertising, advertizement, advertizing |
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| advertizement | (noun) a public promotion of some product or service | Synonyms: ad, advert, advertisement, advertising, advertizing |
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| advisement | (noun) careful consideration | Synonyms: deliberation, weighing |
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| aerogenerator | (noun) generator that extracts usable energy from winds | Synonyms: wind generator, windmill |
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| affableness | (noun) a disposition to be friendly and approachable (easy to talk to) | Synonyms: affability, amiability, amiableness, bonhomie, geniality |
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| affectionateness | (noun) a quality proceeding from feelings of affection or love | Synonyms: fondness, lovingness, warmth |
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| (noun) a positive feeling of liking | Synonyms: affection, fondness, heart, philia, tenderness, warmheartedness, warmness |
| affenpinscher | (noun) European breed of small dog resembling a terrier with dark wiry hair and a tufted muzzle | Synonyms: monkey dog, monkey pinscher |
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| afferent | (adjective) of nerves and nerve impulses; conveying sensory information from the sense organs to the CNS | - |
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| (noun) a nerve that passes impulses from receptors toward or to the central nervous system | Synonyms: afferent nerve, sensory nerve |
| affirmativeness | (noun) the agreeable quality of one who assents | - |
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| affluence | (noun) abundant wealth | Synonyms: richness |
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| affluent | (adjective) having an abundant supply of money or possessions of value | Synonyms: flush, loaded, moneyed, substantial, wealthy |
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| (noun) a branch that flows into the main stream | Synonyms: confluent, feeder, tributary |
| (noun) an affluent person; a person who is financially well off | - |
| affluenza | (noun) an inability to understand the consequences of one's actions because of financial privilege | - |
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| afibrinogenemia | (noun) the absence of fibrinogen in the plasma leading to prolonged bleeding | - |
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| aforementioned | (adjective) being the one previously mentioned or spoken of | Synonyms: aforesaid, said |
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| aftersensation | (noun) an image (usually a negative image) that persists after stimulation has ceased | Synonyms: afterimage |
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| agamogenesis | (noun) reproduction without the fusion of gametes | Synonyms: asexual reproduction |
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| agamogenetic | (adjective) (of reproduction) not involving the fusion of male and female gametes in reproduction | Synonyms: agamic, agamous, apomictic, parthenogenetic |
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| agency | (noun) to have the ability to produce a particular effect or achieve an end | Synonyms: means, way |
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| (noun) an administrative unit of government | Synonyms: authority, bureau, federal agency, government agency, office |
| (noun) a business or organization that provides a particular service, especially the mediation of transactions between two parties | - |
| (noun) the state of serving as an official and authorized delegate or agent | Synonyms: delegacy, representation |
| (noun) the state of being in action or exerting power | - |
| agenda | (noun) a temporally organized plan for matters to be attended to | Synonyms: docket, schedule |
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| (noun) a list of matters to be taken up (as at a meeting) | Synonyms: agendum, order of business |
| agendum | (noun) a list of matters to be taken up (as at a meeting) | Synonyms: agenda, order of business |
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| agenesia | (noun) imperfect development; nondevelopment of a part | Synonyms: agenesis |
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| agenesis | (noun) imperfect development; nondevelopment of a part | Synonyms: agenesia |
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| agent | (noun) the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause | Synonyms: agentive role |
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| (noun) an active and efficient cause; capable of producing a certain effect | - |
| (noun) a businessman who buys or sells for another in exchange for a commission | Synonyms: broker, factor |
| (noun) a representative who acts on behalf of other persons or organizations | - |
| (noun) any agent or representative of a federal agency or bureau | Synonyms: federal agent |
| (noun) a substance that exerts some force or effect | - |
| agential | (adjective) of or relating to an agent or agency | - |
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| agglutinogen | (noun) any substance that acts as an antigen to cause agglutinin production | - |
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| aggrandisement | (noun) the act of increasing the wealth or prestige or power or scope of something | Synonyms: aggrandizement, elevation |
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| aggrandizement | (noun) the act of increasing the wealth or prestige or power or scope of something | Synonyms: aggrandisement, elevation |
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| aggressiveness | (noun) the quality of being bold and enterprising | - |
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| (noun) a natural disposition to be hostile | Synonyms: belligerence, pugnacity |
| (noun) a feeling of hostility that arouses thoughts of attack | Synonyms: aggression |
| agnomen | (noun) an additional name or an epithet appended to a name (as in `Ferdinand the Great') | - |
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| agreeableness | (noun) a temperamental disposition to be agreeable | Synonyms: agreeability |
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| (noun) pleasantness resulting from agreeable conditions | Synonyms: amenity |
| agreement | (noun) compatibility of observations | Synonyms: correspondence |
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| (noun) the thing arranged or agreed to | Synonyms: arrangement |
| (noun) the verbal act of agreeing | - |
| (noun) the statement (oral or written) of an exchange of promises | Synonyms: understanding |
| (noun) the determination of grammatical inflection on the basis of word relations | Synonyms: concord |
| (noun) harmony of people's opinions or actions or characters | Synonyms: accord |
| ailment | (noun) an often persistent bodily disorder or disease; a cause for complaining | Synonyms: complaint, ill |
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| albescent | (adjective) becoming or shading into white | - |
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| albumen | (noun) the white part of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water | Synonyms: egg white, ovalbumin, white |
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| (noun) a simple water-soluble protein found in many animal tissues and liquids | Synonyms: albumin |
| alcalescent | (adjective) tending to become alkaline; slightly alkaline | Synonyms: alkalescent |
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| alendronate | (noun) a tablet (trade name Fosamax) prescribed to prevent or treat osteoporosis in women after menopause | Synonyms: Fosamax |
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| alien | (adjective) not contained in or deriving from the essential nature of something | Synonyms: foreign |
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| (adjective) being or from or characteristic of another place or part of the world | Synonyms: exotic |
| (noun) a person who comes from a foreign country; someone who does not owe allegiance to your country | Synonyms: foreigner, noncitizen, outlander |
| (noun) anyone who does not belong in the environment in which they are found | Synonyms: stranger, unknown |
| (noun) a form of life assumed to exist outside the Earth or its atmosphere | Synonyms: extraterrestrial, extraterrestrial being |
| (verb) transfer property or ownership | Synonyms: alienate |
| alienable | (adjective) transferable to another owner | - |
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| alienage | (noun) the quality of being alien | Synonyms: alienism |
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| alienate | (verb) arouse hostility or indifference in where there had formerly been love, affection, or friendliness | Synonyms: disaffect, estrange |
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| (verb) make withdrawn or isolated or emotionally dissociated | - |
| (verb) transfer property or ownership | Synonyms: alien |
| alienated | (adjective) caused to be unloved | Synonyms: estranged |
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| (adjective) socially disoriented | Synonyms: anomic, disoriented |
| alienating | (adjective) causing hostility or loss of friendliness | - |
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| alienation | (noun) the action of alienating; the action of causing to become unfriendly | - |
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| (noun) (law) the voluntary and absolute transfer of title and possession of real property from one person to another | - |
| (noun) the feeling of being alienated from other people | Synonyms: disaffection, estrangement |
| (noun) separation resulting from hostility | Synonyms: estrangement |
| alienator | (noun) an unpleasant person who causes friendly people to become indifferent or unfriendly or hostile | - |
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| alienee | (noun) someone to whom the title of property is transferred | Synonyms: grantee |
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| alienism | (noun) the quality of being alien | Synonyms: alienage |
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| (noun) an obsolete term for the study and treatment of mental illness | - |
| alienist | (noun) a psychiatrist and specialist in the legal aspects of mental illness | - |
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| alienor | (noun) someone from whom the title of property is transferred | - |
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| alignment | (noun) the act of adjusting or aligning the parts of a device in relation to each other | - |
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| (noun) the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines | - |
| (noun) (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac | Synonyms: conjunction |
| (noun) an organization of people (or countries) involved in a pact or treaty | Synonyms: alinement, alliance, coalition |