- backback1 [bak]n.[ME bak < OE baec; akin to ON bak, OHG bahho]1. the part of the body opposite to the front; in humans and many other animals, the part to the rear or top reaching from the nape of the neck to the end of the spine2. the backbone or spine3. the part of a chair that supports one's back4. the part of a garment or harness that fits on the back of a person or animal5. physical strength [put some back into the work]6. the rear or hinder part of anything; part behind or opposite the front [the back of the room, the back of his leg]7. the part or side of anything that is less often used, seen, etc. [the back of the hand; the back of a carpet, textile, etc.; the back of a knife]8.a) the part of a book where the sections are sewed or glued together; part covered by the spineb) the spine of a book9. Mining the roof or overhead part of an underground passage10. Sports a player positioned behind many of his or her teammates, as a running back in football or a halfback in socceradj.1. at the rear or back; behind2. distant or remote [back country]3. of or for a time in the past [a back copy of a newspaper, back pay]4. in a backward direction; returning; reversed [a back step]5. Phonet. articulated with the tongue toward the back of the mouth: said of certain vowels, as (o͞o) in cooladv.[ME bac < abac < OE on bæc, backward]1. at, to, or toward the rear; backward2. to or toward a former position or location3. into or toward a previous condition4. to or toward an earlier time5. so as to keep in reserve or concealment [to hold back information]6. in return or requital [to pay someone back]vt.1. to cause to move backward, or to the rear: often with up2. to be at the back of; stand behind3. to support or help, as with money, endorsement, etc.4. to make a wager in support of; bet on5. to get on the back of; mount6. to provide with a back or backing7. to form the back of8. to sign on the back; endorse9. to provide security for (a currency, loan, etc.)vi.1.a) to move or go backward [to back into a room]b) to move (into a desired position) through the faulty performance of an opponent [to back into a championship]2. to have the back in a certain place or direction [the house backs on a lake]3. Meteorol. to shift counterclockwise (in the Northern Hemisphere): said of the changing direction of a wind: opposed to VEER1 (vi. 3)SYN.- SUPPORT——————back and fill1. to handle sails so that they alternately spill wind and fill with wind, as in maneuvering in a narrow channel2. to zigzag☆ 3. to vacillate, as in a decision——————back and forth1. to and fro2. from side to side——————☆ back downto withdraw from a position or a claim——————back off1. to move back a short distance2. Informal BACK DOWN3. Informal to refrain or cease from pursuing or annoying; lay off——————back out1. to withdraw from an enterprise2. to refuse to keep a promise——————back out of1. to withdraw from (an enterprise)2. to refuse to keep (a promise)——————back up or back away1. to support or help2. to move or go backward: also back away3. to accumulate as the result of a stoppage [traffic backed up for a mile]4. Baseball to take a position behind (a teammate) in case there should be a mishandled or erratically thrown ball5. Comput. to make a standby or alternate copy of (data, a file, etc.)——————back water1. to use oars, a propeller, etc. to move backward or prevent drifting☆ 2. to withdraw from a position or a claim——————behind someone's backwithout someone's knowledge or consent——————be flat on one's back or be on one's backto be ill, bedridden, or helpless——————☆ get off someone's backSlang to stop nagging or harassing someone——————get one's back upInformal to become angry——————☆ go back on Informal1. to be faithless or disloyal to; betray2. to fail to keep (a promise, one's word, etc.)——————☆ in back of or back ofat or to the rear of; behind——————put someone's back upInformal to make someone angry——————turn one's back on1. to show anger, contempt, etc. toward by turning away from2. to ignore the plight of; desert; fail——————with one's back to the wallin a desperate position, as a cornered fighterback2 [bak]n.[Du bak < LL bacca, water bowl]a vat or tub used in certain industrial processes
English World dictionary. V. Neufeldt. 2014.