(a.) Flat; even; -- a term applied to surfaces and to spaces, whether real or imagined, in which the definitions, axioms, and postulates of Euclid respecting parallel straight lines are assumed to hold true.

Laodicean a fortiori above all absolutely accommodate accordant adjust after all again albeit algorismic algorithmic align aligned alike aliquot all the more all the same already alternate although amount to analogous apathetic appease arrowlike as well assimilate to at all events at any rate at par au pair automatic balance balanced beating break even but by turns calm calm down cancel cardinal centrist changeable chiefly circling close coequal coextending coextensive collateral come to come up to commensurate commutable commutative comparable compensate compose composed concurrent consistent consonant constant continual continuous convertible cool coordinate correspond correspondent counterbalance counterpoise countervail cradle cyclic dab damp dead dead straight decimal defensible definitely delicate deserved despite differential digital direct directly disinterested dispassionate ditto dominantly downy drag draw drawn dress dub due dulcify ease epochal equable equal equalize equalized equalizing equanimous equate equidistant equilateral equilibrize equispaced equitable equivalent especially eurythmic even off even out even so even stephen even up even with even-tempered evenhanded ever so every other exact exactly exchangeably exchanged exponential express expressly fair fair and square faithful faithfully fell fifty-fifty figural figurate figurative fine finished finite first of all fit flat flatten flattened flush for all that fractional gentle get even with give-and-take glabrate glabrescent glabrous good grade grease half-and-half harmonious harmonize harrow homaloidal homogeneous homogenize honest horizontal howbeit however hush identical imaginary immutable impair impartial impassive imperturbable impossible in a line in all respects in any case in any event in chief in every respect in exchange in return in spite of in the main in turn indeed independent indifferent inerrable inerrant infallible infinite integral integrate interchangeable interchanged intermittent invariable ipsissimis verbis irrational isochronal just just the same justifiable justified keep pace with knot knotted lawful lay lay down lay flat lay level lay low lay out legal leiotrichous level level with levelheaded like lineal linear lined up literally literatim logarithmic logometric lubricate lull mainly make uniform match match up with mathematical measure up to measured mechanical meet meet and right merited methodic