swear up and down

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affirm v.
avow v.
hold v.
profess v.
promise v.
swear v.
testify v.
vouch v.
vow v.

VERB

affirm

Synonyms

STRONGEST

assert confirm declare guarantee insist maintain profess ratify repeat

STRONG

asseverate attest aver avouch avow certify cinch clinch ice okay predicate pronounce set state swear testify vouch witness

WEAK

cross heart have a lock on lock up nail down put on ice rubber-stamp say so swear on bible

Antonyms

STRONGEST

deny forget veto

STRONG

disavow refute reject renounce repudiate

WEAK

negate nullify

VERB

avow

Synonyms

STRONG

acknowledge admit affirm allow assert aver avouch concede confess declare grant maintain proclaim swear

WEAK

cross one's heart own up swear on bible

Antonyms

STRONG

conceal condemn contradict deny disavow dispute dissent hide ignore refuse reject repudiate veto

WEAK

censure disclaim disown renounce

VERB

hold

Synonyms

STRONGEST

buy maintain

STRONG

assume aver consider credit deem entertain esteem feel judge okay presume reckon regard sense think view

WEAK

bet bottom dollar cross one's heart have hunch have sneaking suspicion lap up lay money on set store by swear by take as gospel truth take stock in

Antonyms

STRONG

disbelieve disregard forget ignore leave mistrust neglect refuse reject

WEAK

abandon cancel cease desert drop forsake halt let go quit release stop

VERB

profess

Synonyms

STRONGEST

acknowledge admit affirm avow confess feign pretend proclaim stump

STRONG

allege announce asseverate aver avouch certify claim confirm croon depose dissemble fake maintain own predicate purport sing spiel spout state vouch

WEAK

act as if blow hot air come out constate cross heart get off chest get on soapbox make out open up own up say so soapbox swear on bible talk big

Antonyms

STRONGEST

conceal deny disavow disown dispute hide refuse renounce repudiate

STRONG

be quiet contradict invalidate question reject

VERB

promise

Synonyms

STRONGEST

affirm agree assure commit declare ensure guarantee vow

STRONG

accede affiance assent bargain betroth bind compact consent contract covenant engage espouse hock insure mortgage obligate pass pawn pledge plight profess secure stipulate subscribe swear undertake underwrite vouch warrant

WEAK

answer for asseverate cross heart live up to say so string along swear on bible take an oath

Antonyms

STRONGEST

deny disavow

STRONG

break break off disagree disapprove dissent divorce enlarge give up let go loose loosen lose protest refuse reject release unfasten untie

WEAK

discourage renege

VERB

swear

Synonyms

STRONGEST

affirm assert depose testify vow

STRONG

attest avow covenant maintain plight promise state trust vouch warrant

WEAK

cross one's heart depend on give one's word give witness have confidence in make an affidavit pledge oneself rely on say so state under oath swear by swear to God take an oath

Antonyms

STRONGEST

deny

STRONG

break condemn renounce

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 to 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 to

Antonyms

STRONG

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

WEAK

renounce

VERB

vow

Synonyms

STRONGEST

affirm assure declare promise swear

STRONG

consecrate covenant dedicate devote pledge plight testify vouch warrant

WEAK

cross one's heart give word of honor undertake solemnly

Antonyms

STRONGEST

deny

STRONG

break misuse

WEAK

disavow

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.

See Examples For:

swear up and down

Stubbornly digging in, she will swear up and down that her incomprehensible lyrics to a song are the “right” lyrics.

From Washington Post ● Jul. 12, 2021

“He could swear up and down on a piece of paper,” said Windy Dipa Rhoads, who considered Mr. Jones to be her godfather.

From New York Times ● Aug. 31, 2020

“Kids will swear up and down they won’t touch each other, then you see them sharing a lollipop,” he said.

From Washington Post ● Mar. 14, 2020

When a liar is caught stealing a candy bar from the corner store, he will swear up and down he didn’t do it.

From Slate ● Apr. 19, 2017

I used to swear up and down that Quinton was some super-secret spy like James Bond.

From "Amari and the Night Brothers" by B.B. Alston

swear up and down

Example Sentences

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Related Words