(a.) Being at the back or in the rear; distant; remote; as, the   back door; back settlements. 
                        
                    
                    
                        
                        
                            (a.) Being in arrear; overdue; as, back rent. 
                        
                    
                    
                        
                        
                            (a.) Moving or operating backward; as, back action. 
                        
                    
                    
                        
                        
                            (adv.) (Of time) In times past; ago. 
                        
                    
                    
                        
                        
                            (adv.) Away from contact; by reverse movement. 
                        
                    
                    
                        
                        
                            (adv.) In a state of restraint or hindrance. 
                        
                    
                    
                        
                        
                            (adv.) In arrear; as, to be back in one's rent. 
                        
                    
                    
                        
                        
                            (adv.) In concealment or reserve; in one's own possession; as, to   keep back the truth; to keep back part of the money due to another. 
                        
                    
                    
                        
                        
                            (adv.) In return, repayment, or requital. 
                        
                    
                    
                        
                        
                            (adv.) In withdrawal from a statement, promise, or undertaking;   as, he took back0 the offensive words. 
                        
                    
                    
                        
                        
                            (adv.) In, to, or toward, the rear; as, to stand back; to step   back. 
                        
                    
                    
                        
                        
                            (adv.) To a former state, condition, or station; as, to go back to   private life; to go back to barbarism. 
                        
                    
                    
                        
                        
                            (adv.) 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 one's native place; to put a book back after   reading it. 
                        
                    
                    
                        
                        
                            (n.) A ferryboat. See Bac, 1. 
                        
                    
                    
                        
                        
                            (n.) A garment for the back; hence, clothing. 
                        
                    
                    
                        
                        
                            (n.) 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. 
                        
                    
                    
                        
                        
                            (n.) A support or resource in reserve. 
                        
                    
                    
                        
                        
                            (n.) An extended upper part, as of a mountain or ridge. 
                        
                    
                    
                        
                        
                            (n.) 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. 
                        
                    
                    
                        
                        
                            (n.) The keel and keelson of a ship. 
                        
                    
                    
                        
                        
                            (n.) 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. 
                        
                    
                    
                        
                        
                            (n.) The part of a cutting tool on the opposite side from its   edge; as, the back of a knife, or of a saw. 
                        
                    
                    
                        
                        
                            (n.) 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. 
                        
                    
                    
                        
                        
                            (n.) 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. 
                        
                    
                    
                        
                        
                            (n.) The upper part of a lode, or the roof of a horizontal   underground passage. 
                        
                    
                    
                        
                        
                            (v. i.) To adjoin behind; to be at the back of. 
                        
                    
                    
                        
                        
                            (v. i.) To bet on the success of; -- as, to back a race horse. 
                        
                    
                    
                        
                        
                            (v. i.) To change from one quarter to another by a course opposite   to that of the sun; -- used of the wind. 
                        
                    
                    
                        
                        
                            (v. i.) To drive or force backward; to cause to retreat or recede;   as, to back oxen. 
                        
                    
                    
                        
                        
                            (v. i.) To get upon the back of; to mount. 
                        
                    
                    
                        
                        
                            (v. i.) To make a back for; to furnish with a back; as, to back   books. 
                        
                    
                    
                        
                        
                            (v. i.) To move or go backward; as, the horse refuses to back. 
                        
                    
                    
                        
                        
                            (v. i.) To place or seat upon the back. 
                        
                    
                    
                        
                        
                            (v. i.) To stand still behind another dog which has pointed; --   said of a dog. 
                        
                    
                    
                        
                        
                            (v. i.) To support; to maintain; to second or strengthen by aid or   influence; as, to back a friend. 
                        
                    
                    
                        
                        
                            (v. i.) To write upon the back of; as, to back a letter; to   indorse; as, to back a note or legal document.