chuck up the sponge, drop out, give up, leave, quit, throw in, throw in the towel

partake, attend, join, engage, enroll, involved, enter, compete, initiate, perform, contribute, invite, cooperate, organize, undertake, conduct, sponsoring, interested, observe, rejoin, submit, nominate, interact, collaborate, forego, culminate, speak, register, proceed, donate, commit, officiate, indulge, dabble, supervise, undergo, commence, convene, reschedule, reengage, pursue, excel, postpone, enlist, explore, forgo, learn, underwrite, invest, interfere, enjoy, utilize, select, testify, take, prequalify, adopt, receive, begin, choose, opt, spectate, succeed, cancel, boycotted, embark, fraternize, follow, encourage, devote, coordinate, mingle, socialize, inaugurate, pyic, hold, fundraise, conclude, dedicate, play, reenter, benefit, represent, apply, preside, hippology, oversee, meddle, convoke, concelebrate, accept, solemnize, intervene, teach, qualify, listen, lend, cosponsor, enrol, volunteer, incorporate, reenact, are, beautiful, chosen, does, driven, exist, first, is, live, most, operate, prepare, ref, thick, written, yourself, 's, abide, above

experience, go through, jump, partake in, share in, undergo

amateurism, androgenesis, androgeny, aquanaut, baryon, boat-race, carnal abuse, clannishly, complement fixation, conference call, double date, engage, heavy particle, informed consent, initiate, invitation, noncombatant, nonparticipant, oceanaut, party, pioneer, play, prosecute, proxy war, pursue, rave, sign up, sit in, sit out, somatic cell, speakerphone, sporting goods, sports equipment, statutory rape, vegetative cell

act, move

enter, take part