Jettison

• POS: Noun, Verb (transitive)
• HYPHEN: jet=ti=son

CIDE DICTIONARY

Jettison, n. [See Jetsam.].

•  The throwing overboard of goods from necessity, in order to lighten a vessel in danger of wreck.  [1913 Webster]
•  See Jetsam, 1.  [1913 Webster]

OXFORD DICTIONARY

Jettison, v. & n.
--v.tr.
1 a throw (esp. heavy material) overboard to lighten a ship, hot-air balloon, etc. b drop (goods) from an aircraft.
2 abandon; get rid of (something no longer wanted).
--n. the act of jettisoning.

Etymology

ME f. AF getteson, OF getaison f. L jactatio -onis f. jactare throw: see JET(1)

THESAURUS

Jettison

abandon, abandonment, abdicate, absentation, back out, beg off, boot out, booting out, bounce, cashier, cast, cast aside, cast away, cast off, cast out, castaway, casting away, castoff, cessation, chuck, chuck out, cry off, deep six, deep-six, defenestrate, defenestration, depart from, desuetude, detrude, detrusion, discard, discarding, discharge, disposal, dispose of, disposition, disuse, ditch, drop out, dump, dumping, eighty-six, eject, ejection, ejectment, eliminate, elimination, evacuate, evacuation, exclude, expel, expulsion, extrude, extrusion, forsake, forsaking, get quit of, get rid of, get shut of, give away, give the hook, go back on, heave out, jettisoning, jilt, junk, junking, kick downstairs, kick out, kicking downstairs, leave, leave behind, leave flat, leaving, maroon, obtrude, obtrusion, oust, ouster, ousting, part with, pull out, pulling out, put out, quit, quit cold, refuse, reject, rejectamenta, rejection, relegation, removal, remove, renege, riddance, say goodbye to, scrap, scrapping, shed, slough, stand down, take leave of, the boot, the bounce, throw away, throw out, throw over, throw overboard, throwaway, throwing out, throwing overboard, thrust out, toss out, toss overboard, turn out, vacate, withdraw, withdrawal

ROGET THESAURUS

Jettison

Relinquishment

VB relinquish, give up, abandon, desert, forsake, leave in the lurch, go back on, depart from, secede from, withdraw from, back out of, leave, quit, take leave of, bid a long farewell, vacate, renounce, forego, have done with, drop, disuse, discard, wash one's hands of, drop all idea of, break off, leave off, desist, stop, hold one's hand, stay one's hand, quit one's hold, give over, shut up shop, throw up the game, throw up the cards, give up the point, give up the argument, pass to the order of the day, move to the previous question, relinquish, give up, surrender, yield, cede, let go, let slip, spare, drop, resign, forego, renounce, abandon, expropriate, give away, dispose of, part with, lay aside, lay apart, lay down, lay on the shelf, set aside, put aside, put away, make away with, cast behind, maroon, give notice to quit, give warning, supersede, be rid of, get rid of, be quit of, get quit of, eject, rid oneself of, disburden oneself of, divest oneself of, dispossess oneself of, wash one's hands of, discard, cast off, dismiss, cast away, throw away, pitch away, fling away, cast aside, cast overboard, cast to the dogs, throw aside, throw overboard, throw to the dogs, pitch aside, pitch overboard, pitch to the dogs, fling aside, fling overboard, fling to the dogs, cast to the winds, throw to the winds, sweep to the winds, put away, turn away, sweep away, jettison, reject, quit one's hold, quitclaim.