assure

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To inform positively, as to remove doubt: assured us that the train would be on time.
2. v. To cause to feel sure: assured her of his devotion.
3. v. To give confidence to; reassure.
4. v. To make certain; ensure: "Nothing in history assures the success of our civilization” ( Herbert J. Muller).
5. v. To make safe or secure.
6. v. Chiefly British To insure, as against loss.

Century Dictionary and Cyclopedia

1. To make sure or certain; convince or make confident, as by a promise, declaration, or other evidence: as, to assure a person of one's favor or love.
2. To declare solemnly to; assert earnestly to; endeavor to convince by assertion: as, I assure you I am speaking the truth.
3. To secure or confirm; make sure to be or to continue; give certainty or stability to: as, to assure a person's position or possessions.
4. To free from obscurity, ambiguity, or uncertainty.
5. To embolden; make confident.
6. To affiance; betroth.
7. To insure, as against loss. Synonyms Insure, Assure (see insure); to asseverate to, encourage, vouch to, warrant.
8. To confide; trust.
9. To promise; pledge one's self.

Wiktionary

1. v. To make sure and secure.
2. v. To give (someone) confidence in the trustworthiness of (something).
3. v. To guarantee, promise (to do something).
4. v. To reassure.

GNU Webster's 1913

1. v. To make sure or certain; to render confident by a promise, declaration, or other evidence.
2. v. To declare to, solemnly; to assert to (any one) with the design of inspiring belief or confidence.
3. v. To confirm; to make certain or secure.
4. v. To affiance; to betroth.
5. v. To insure; to covenant to indemnify for loss, or to pay a specified sum at death. See Insure.

WordNet 3.0

1. v. assure somebody of the truth of something with the intention of giving the listener confidence
2. v. make certain of
3. v. cause to feel sure; give reassurance to
4. v. be careful or certain to do something; make certain of something
5. v. inform positively and with certainty and confidence
6. v. make a promise or commitment