mature, v. [ripen], [develop], [perfect], [season].
maturity, n. [development], [ripeness], [perfection], [completion]. Antonym: immaturity.
maudlin, a. over-emotional, [tearful]; tipsy, [fuddled], intoxicated.
maul, v. [pound], [pommel], [beat], [club], [cudgel].
maul, n. [beetle], mall.
mauling, n. pounding, [beating], clubbing, cudgelling.
maw, n. [stomach]; craw, [crop].
mawkish, a. [nauseous], [sickening], loathful, [disgusting]; squeamish, [fastidious].
maxim, n. [axiom], [adage], [proverb], aphorism, apothegm, [saw], [precept].
maybe, adv. [perhaps], [possibly], peradventure, haply.