transitive. To confirm or validate (an agreement, pledge, etc.) by giving formal consent, approval, or sanction; to carry out (a command). Obsolete.

transitive. To prove true; to verify, confirm.

transitive. To advocate or support as valid, correct, or true; to uphold or affirm the justice or validity of.

transitive. To be formally present as a witness of (a transaction).

To pronounce to be good, commend. transitive.

To corroborate, or add support to (a statement, etc.); to make certain, verify, put beyond doubt.

transitive. To confirm (a statement made by another); to maintain or stand by (a statement of one's own). Obsolete.

transitive. To make good (an argument, statement, or opinion); to confirm or support by attestation or evidence; to corroborate, prove, verify…

transitive. To corroborate, confirm (a fact or assertion). Also: to support, back up (a person) (now only in something he or she has claimed).

= corroborate, v.

To support by advocacy or assent; to sustain against objection or criticism.

transitive. To foster, cherish, or nurse (a feeling, thought, etc.) in one's heart or mind, typically over a long period of time.

figurative. To support, corroborate.

to countenance out (also, to countenance): to face out, persist in maintaining unblushingly or unfalteringly; also (of a thing) to bear out…

Of a circumstance, fact, etc.: To lend confirmation or support to (a belief, doctrine, rarely, a person); to point in the direction of.

To support, or back up, (a person) in a statement or assertion. Obsolete.

transitive. To confirm (a person) in an opinion, belief, feeling, etc.

figurative. To confirm, corroborate. Obsolete. rare.

To support, back (a statement, opinion, a person in his or her opinion); to confirm, corroborate (a report). Obsolete.

transitive. To give or lend credit to, to promote as or show to be credible; to gain belief or influence for. Also: to vouch for, sanction, or…

To demonstrate by means of evidence. transitive (in passive). Esp. of a fact or statement: to be backed up with supporting evidence; to be shown…

To warrant, sanction, authorize; to confirm, corroborate.

figurative. To confirm, give consistency to. Obsolete.

To support morally (by arguments, etc.).

transitive. figurative. To make more substantial; to strengthen, confirm.

transitive. = accredit, v. (in various senses); (in recent use esp.) to confer official accreditation on (a school, programme, etc.). Now chiefly in p…

transferred. Of a thing: To prop up. figurative. Of the terms of an argument: To back up. Obsolete.

transitive. (a) To add to as an enhancement, reinforce, supplement; †(b) to intensify, as by contrast (obsolete rare).

To strengthen (an opinion, statement, argument, etc.) by concurrent or agreeing statements or… of a person.

transitive. To support (a supposition, inference, analogous case, etc.); to give validity to. rare.

to give (also lend) colour: (originally) to give a specious appearance of truth to an idea, opinion, etc.; to afford a ground or pretext for an…