meaning of back
1.  A large shallow vat; a cistern, tub, or trough, used by brewers, distillers, dyers, picklers, gluemakers, and others, for mixing or cooling wort, holding water, hot glue, etc. 
2.  A ferryboat.   See Bac, 1. 
3.  In human beings, the hinder part of the body, extending from the neck to the end of the spine; in other animals, that part of the body which corresponds most nearly to such part of a human being; as, the back of a horse, fish, or lobster. 
4.  An extended upper part, as of a mountain or ridge. 
5.  The outward or upper part of a thing, as opposed to the inner or lower part; as, the back of the hand, the back of the foot, the back of a hand rail. 
6.  The part opposed to the front; the hinder or rear part of a thing; as, the back of a book; the back of an army; the back of a chimney. 
7.  The part opposite to, or most remote from, that which fronts the speaker or actor; or the part out of sight, or not generally seen; as, the back of an island, of a hill, or of a village. 
8.  The part of a cutting tool on the opposite side from its edge; as, the back of a knife, or of a saw. 
9.  A support or resource in reserve. 
10.  The keel and keelson of a ship. 
11.  The upper part of a lode, or the roof of a horizontal underground passage. 
12.  A garment for the back; hence, clothing. 
13.  Being at the back or in the rear; distant; remote; as, the back door; back settlements. 
14.  Being in arrear; overdue; as, back rent. 
15.  Moving or operating backward; as, back action. 
16.  To get upon the back of; to mount. 
17.  To place or seat upon the back. 
18.  To drive or force backward; to cause to retreat or recede; as, to back oxen. 
19.  To make a back for; to furnish with a back; as, to back books. 
20.  To adjoin behind; to be at the back of. 
21.  To write upon the back of; as, to back a letter; to indorse; as, to back a note or legal document. 
22.  To support; to maintain; to second or strengthen by aid or influence; as, to back a friend. 
23.  To bet on the success of; -- as, to back a race horse. 
24.  To move or go backward; as, the horse refuses to back. 
25.  To change from one quarter to another by a course opposite to that of the sun; -- used of the wind. 
26.  To stand still behind another dog which has pointed; -- said of a dog. 
27.  In, to, or toward, the rear; as, to stand back; to step back. 
28.  To the place from which one came; to the place or person from which something is taken or derived; as, to go back for something left behind; to go back to ones native place; to put a book back after reading it. 
29.  To a former state, condition, or station; as, to go back to private life; to go back to barbarism. 
30.  (Of time) In times past; ago. 
31.  Away from contact; by reverse movement. 
32.  In concealment or reserve; in ones own possession; as, to keep back the truth; to keep back part of the money due to another. 
33.  In a state of restraint or hindrance. 
34.  In return, repayment, or requital. 
35.  In withdrawal from a statement, promise, or undertaking; as, he took back0 the offensive words. 
36.  In arrear; as, to be back in ones rent. 
37.  A door in the back part of a building; hence, an indirect way. 
38.  Stairs in the back part of a house, as distinguished from the front stairs; hence, a private or indirect way. 
39.  the position of a player on a football team who is stationed behind the line of scrimmage
						 
Related Words
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