Another word for define
To set limits
delimit, demarcate, fix, settle, bound, confine, limit, outline, circumscribe, mark, set, determine, distinguish, establish, compass, encompass, delineate, mark the limits of, determine the boundaries of, fix the limits of, curb, edge, border, enclose, set bounds to, fence in, rim, encircle, hedge in, wall in, envelop, girdle, gird, belt, flank, stake out; see also surround 1, 2.
To provide a name or description
describe, explain, determine, specify, characterize, entitle, ascertain, name, label, designate, individualize, differentiate, formalize, elucidate, interpret, clarify, illustrate, give the meaning of, gloss, paraphrase, annotate, represent, render precise, individuate, find out, spell out, literalize, construe, denominate, denote, expound, translate, exemplify, assign, prescribe, style, dub; see also describe, explain, name 1, 2.