Definitions

swear to

VERB

contract

Synonyms

STRONGEST

agree buy negotiate owe settle sign up undertake

STRONG

adjust arrange assent bargain bound circumscribe clinch close commit consent covenant dicker engage initial ink limit obligate pact pledge promise set stipulate

WEAK

accept offer become indebted come around enter into firm a deal give one's word go along with hammer out deal it's a deal make terms put in writing shake hands on it sign for sign papers work out details

Antonyms

STRONG

break confuse derange disagree disapprove disarrange discourage disorder disorganize dissent end free let go open refuse reject release

WEAK

amplify break off dilate enlarge expand extend give increase lengthen spread stretch

VERB

testify

Synonyms

STRONGEST

announce argue assert declare depose indicate swear

STRONG

affirm attest bespeak betoken certify corroborate demonstrate depone evince mount prove show sing state warrant witness

WEAK

bear witness cross one's heart give evidence give facts give one's word make evident point to say so stand up for swear up and down token

Antonyms

STRONGEST

conceal deny hide

STRONG

contradict discredit refute reject veto

VERB

vouch

Synonyms

STRONG

affirm assert asseverate assure avert avow back certify confirm contend corroborate cosign declare guarantee maintain okay predicate profess prove sponsor substantiate support testify uphold verify vow warrant witness

WEAK

act as a witness answer for attest to be responsible for bear testimony get behind give an affidavit put forth rubber-stamp say so sign for stand up for swear up and down

Antonyms

STRONG

break condemn contradict deny desert disapprove disavow disclaim discourage discredit disprove invalidate neglect oppose refuse refute reject repudiate veto

WEAK

renounce

VERB

vouch for

Synonyms

WEAK

assert under oath attest guarantee vouch

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I swear to you, I have no reason to lie to you. Lord Jesus Christ,” she is heard sobbing into the phone on video.

From Los Angeles Times • Jan. 29, 2026

“I swear to God, I’m going to stop everything and just design homes. I’m not kidding,” she said.

From MarketWatch • Dec. 16, 2025

“There’s always the desire to overexplain. ‘I didn’t mean it that way, and I swear to God, I’m a feminist!’

From Salon • Oct. 17, 2025

I swear to God, it was sitcom-esque timing, but it really happened.

From Los Angeles Times • Aug. 12, 2025

“I swear to you, M. Poirot, and my husband knows and will swear also—that, much as I may have been tempted to do so, I never lifted a hand against that man.”

From "Murder on the Orient Express" by Agatha Christie

swear to

Example Sentences

Related Words