(usually plural) a necessary commodity for which demand is constant
a popular programming language that is relatively easy to learn; an acronym for beginner's all-purpose symbolic instruction code; no longer in general use
of or denoting or of the nature of or containing a base
serving as a base or starting point; "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools"; "an introductory art course"
pertaining to or constituting a base or basis; "a basic fact"; "the basic ingredients"; "basic changes in public opinion occur because of changes in priorities"
reduced to the simplest and most significant form possible without loss of generality; "a basic story line"; "a canonical syllable pattern"
a base hit on which the batter stops safely at first base
existing alone or consisting of one entity or part or aspect or individual; "upon the hill stood a single tower"; "had but a single thought which was to escape"; "a single survivor"; "a single serving"; "a single lens"; "a single thickness"
used of flowers having usually only one row or whorl of petals; "single chrysanthemums resemble daisies and may have more than one row of petals"
not changeable or subject to change; "a fixed and unchangeable part of the germ plasm"-Ashley Montagu; "the unchangeable seasons"; "one of the unchangeable facts of life"
used of values and principles; not subject to change; steady; "undeviating loyalty"
going directly ahead from one point to another without veering or turning aside; "some people see evolution as an undeviating upward march from simple organisms to the very complex"; "a straight and narrow tree-lined road unswerving across the lowlands"
continuing in time or space without interruption; "a continuous rearrangement of electrons in the solar atoms results in the emission of light"- James Jeans; "a continuous bout of illness lasting six months"; "lived in continuous fear"; "a continuous row of warehouses"; "a continuous line has no gaps or breaks in it"; "moving midweek holidays to the nearest Monday or Friday allows uninterrupted work weeks"
of a function or curve; extending without break or irregularity
easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem"
of or being the essential or basic part; "an elementary need for love and nurturing"
not decided or not known; "were indefinite about their plans"; "plans are indefinite"
vague or not clearly defined or stated; "must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal"
not clearly defined or easy to perceive or understand; "indistinct shapes in the gloom"; "an indistinct memory"; "only indistinct notions of what to do"