| Swear 1. (v. i.) To affirm or utter a solemn declaration, with an appeal to God for the truth of what is affirmed; to make a promise, threat, or resolve on oath; also, to affirm solemnly by some sacred object, or one regarded as sacred, as the Bible, the Koran, etc. 2. (v. i.) To give evidence on oath; as, to swear to the truth of a statement; he swore against the prisoner. 3. (v. i.) To make an appeal to God in an irreverent manner; to use the name of God or sacred things profanely; to call upon God in imprecation; to curse. 4. (v. t.) To utter or affirm with a solemn appeal to God for the truth of the declaration; to make (a promise, threat, or resolve) under oath. 5. (v. t.) To put to an oath; to cause to take an oath; to administer an oath to; -- often followed by in or into; as, to swear witnesses; to swear a jury; to swear in an officer; he was sworn into office. 6. (v. t.) To declare or charge upon oath; as, he swore treason against his friend. 7. (v. t.) To appeal to by an oath. Thesaurus Entries abjure, abuse, acknowledge, adjure, administer an oath, affirm, agree, allege, and candle, assert, assert under oath, asseverate, assure, attest, aver, avoid, avouch, avow, bear witness, believe in, blaspheme, book, certify, confess, count on, countersign, covenant, curse, curse and swear, cuss, declare, depone, depose, disclose, dysphemize, eschew, execrate, expletive, express the belief, forgo, forsake, forswear, give evidence, give up, go off, guarantee, have confidence in, imprecate, insist, kiss the book, make a promise, oath, pledge, plight, profess, promise, put under oath, put upon oath, rely on, renounce, scatologize, shun, state, swear by, swear by bell, swear in, swear off, swear the truth, swear to, swear to God, swear to goodness, talk dirty, testify, throw over, troth, trust in, undertake, underwrite, use language, vilify, vouch, vouchsafe, vow, warrant, witness |