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: taking place in the open air

alg abbreviation algebra

al·ga noun, plural al·gae : any of a group of lower plants having chlorophyll but no vascular system and including seaweeds and related freshwater plants

— al·gal adjective

al·ge·bra noun [ORIGIN: ML, fr. Ar al-jabr]

: a branch of mathematics using symbols (as letters) to explore the relationships between numbers and the operations used to work with them

— al·ge·bra·ic adjective

— al·ge·bra·i·cal·ly adverb

Al·ge·ri·an noun : a native or inhabitant of Algeria

— Algerian adjective

Al·gon·quin noun : a member of an American Indian people of the Ottawa River valley

al·go·rithm noun : a procedure for solving a problem esp. in mathematics or computing

— al·go·rith·mic adjective

— al·go·rith·mi·cal·ly adverb

1alias adverb [ORIGIN: L, otherwise, fr. alius other]

: otherwise called

2alias noun : an assumed or additional name

Synonyms

cognomen, nickname—more at NICKNAME

1alibi noun [ORIGIN: L, elsewhere, fr. alius other]

1 : a plea offered by an accused person of not having been at the scene of an offense

2 : an excuse (as for failure)

Synonyms

defense, excuse, justification, plea, reason—more at EXCUSE

2alibi verb -bied; -bi·ing 1 : to furnish an excuse for

2 : to offer an excuse

1alien adjective : belonging or relating to another person, place, or thing : FOREIGN

Synonyms

adventitious, extraneous, extrinsic, foreign—more at EXTRINSIC

2alien noun 1 : a foreign-born resident who has not been naturalized

2 : EXTRATERRESTRIAL

alien·able adjective : transferable to the ownership of another <~ property>

alien·ate verb -at·ed; -at·ing 1 : to make hostile : ESTRANGE

2 : to transfer (property) to another

Synonyms

disaffect, disgruntle, estrange, sour—more at ESTRANGE

alien·ation noun : a withdrawing or separation of a person or a person's affections from an object or position of former attachment

Synonyms

disaffection, estrangement—more at ESTRANGEMENT

alien·ist noun : PSYCHIATRIST

1alight verb alight·ed also alit ; alight·ing 1 : to get down (as from a vehicle)

2 : to come to rest from the air

Synonyms

land, light, perch, roost, settle

2alight adjective : lighted up

Synonyms

ablaze, bright, light—more at BRIGHT

align also aline verb 1 : to bring into line

2 : to array on the side of or against a cause

— align·er noun

— align·ment also aline·ment noun

1alike adverb : in the same manner, form, or degree

Synonyms

also, correspondingly, likewise, similarly, so—more at ALSO

2alike adjective : exhibiting close resemblance without being identical : LIKE

Synonyms

akin, analogous, comparable, correspondent, like, parallel, similar, such; also commensurate, proportionate

Antonyms

different, dissimilar, diverse, unlike

al·i·ment noun : NOURISHMENT 1

— aliment verb

al·i·men·ta·ry adjective : of, relating to, or functioning in nourishment or nutrition

alimentary canal noun : the tube that extends from the mouth to the anus and functions in the digestion and absorption of food and the elimination of residues

al·i·mo·ny noun, plural -nies [ORIGIN: L alimonia sustenance, fr. alere to nourish]

: an allowance made to one spouse by the other for support pending or after legal separation or divorce

A–line adjective : having a flared bottom and a close-fitting top

alive adjective 1 : having life

2 : being in force or operation

3 : knowing or realizing the existence of <~ to the danger>

4 : ALERT, BRISK

5 : marked by much life, animation, or activity : ANIMATED

— alive·ness noun

Synonyms

[1] existent, extant, living—more at EXTANT

[1] animate, live, living; also active, animated, dynamic, lively, thriving, vibrant, vital, vivacious

Antonyms

dead, deceased, defunct, lifeless, nonliving

[2] active, functional, living, on, operational, operative, running, working—more at ACTIVE

[3] aware, cognizant, conscious, mindful, sensible, sentient—more