Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

144. [Gradual change to something different.] Conversion — N.

conversion, reduction, transmutation, resolution, assimilation; evolution, sea change; change of state; assumption; naturalization; transportation; development [Biol.], developing. [photography] [conversion of currency] conversion of currency, exchange of currency; exchange rate; bureau de change. chemistry, alchemy; progress, growth, lapse, flux. passage; transit, transition; transmigration, shifting &c v.; phase; conjugation; convertibility. crucible, alembic, caldron, retort. convert, pervert, renegade, apostate. V. be converted into; become, get, wax; come to, turn to, turn into, evolve into, develop into; turn out, lapse, shift; run into, fall into, pass into, slide into, glide into, grow into, ripen into, open into, resolve itself into, settle into, merge into, emerge as; melt, grow, come round to, mature, mellow; assume the form of, assume the shape of, assume the state of, assume the nature of, assume the character of; illapse†; begin a new phase, assume a new phase, undergo a change. convert into, resolve into; make, render; mold, form &c 240; remodel, new model, refound†, reform, reorganize; assimilate to, bring to, reduce to. Adj. converted into &c v.; convertible, resolvable into; transitional; naturalized. Adv. gradually, &c (slowly) 275 in transitu &c (transference) 270 [Lat.].