THESAURUS
Devote
allocate, allot, apply, appoint, appropriate, assign, attempt, attend to business, beatify, bend, bestow, bless, buckle down, busy, canonize, cleanse, commit, confide, consecrate, consecrate to, consume, dedicate, dedicate to, destinate, destine, direct, donate, doom, employ, endeavor, engage, enshrine, exalt, expend, fate, foredoom, give, give away, give over to, give to, give up, glorify, hallow, hand out, mark, mind the store, occupy, ordain, pass, pass the time, pledge, present, purify, put aside, put away, put in, saint, sanctify, set apart, set aside, spend, spend the time, strive, struggle, throw, try, turn, use, use up, utilize, vow, while, while away, wile
ROGET THESAURUS
Devote
Necessity
VB
lie under a necessity, befated, be doomed, be destined, in for, under the necessity of, have no choice, have no alternative, be one's fate, to be pushed to the wall to be driven into a corne, to be unable to help, destine, doom, foredoom, devote, predestine, preordain, cast a spell, necessitate, compel.
Use
VB
use, make use of, employ, put to use, put in action, put in operation, put in practice, set in motion, set to work, ply, work, wield, handle, manipulate, play, play off, exert, exercise, practice, avail oneself of, profit by, resort to, have recourse to, recur to, take betake oneself to, take up with, take advantage of, lay one's hands on, try, render useful, mold, turn to account, turn to use, convert to use, utilize, work up, call into play, bring into play, put into requisition, call forth, draw forth, press into service, enlist into the service, bring to bear upon, devote, dedicate, consecrate, apply, adhibit, dispose of, make a handle of, make a cat's-paw of, fall back upon, make a shift with, make the most of, make the best of, use up, swallow up, consume, absorb, expend, tax, task, wear, put to task.