Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

assure

verb

Synonyms and Antonyms of assure

1 to ease the grief or distress of

  • a minister choosing just the right words to assure the grieving parents of the fallen soldier
Synonyms of assure

cheer, comfort, console, reassure, solace, soothe
Words Related to assure

commiserate, condole, empathize, sympathize

boost, buoy (up), elevate, lift, uplift

allay, alleviate, assuage, relieve

calm, quiet, relax, tranquilize (also tranquillize)
Near Antonyms of assure

demoralize, discourage, dishearten

fret, upset, worry

aggravate, intensify, worsen

annoy, irk, irritate

harass, pester
Antonyms of assure

distress, torment, torture, trouble

2 to make sure, certain, or safe

  • security measures that assured our safety
Synonyms of assure

cinch, ensure, guarantee, guaranty, ice, insure, secure
Words Related to assure

attest, certify, vouch, warrant, witness

pledge, promise, swear
Near Antonyms of assure

enfeeble, undermine, weaken

Synonym Discussion of assure

ensure, insure, assure, secure mean to make a thing or person sure. ensure, insure, and assure are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ensure may imply a virtual guarantee
    • the government has ensured the safety of the refugees
, while insure sometimes stresses the taking of necessary measures beforehand
    • careful planning should insure the success of the party
, and assure distinctively implies the removal of doubt and suspense from a person's mind.
    • I assure you that no harm will be done
secure implies action taken to guard against attack or loss.
    • sent reinforcements to secure their position

Learn More about assure

  1. See words that rhyme with assure Dictionary: Definition of assure Spanish Central: Translation of assure Nglish: Translation of assure for Spanish speakers Britannica English: Translation of assure for Arabic speakers

Seen and Heard

What made you want to look up assure? Please tell us where you read or heard it (including the quote, if possible).

show comments hide comments

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

millefleur

having a pattern of small flowers

Get Word of the Day daily email!

TRENDING NOW

  1. nebulous Lip reading, Brexit, and semantic uncertainty

  2. synergy Mueller files Cohen details.

  3. slumgullion From the broadcast of 'It Happened on Fifth Avenue'

SEE ALL

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games