check up on

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ascertain v.
verify v.

VERB

ascertain

Synonyms

STRONGEST

confirm determine divine double-check find out verify

STRONG

check dig discover establish eye eyeball fix identify learn peg read see settle size tell

WEAK

catch on check out get down cold get down pat get hold of get it down get the hang of learn the ropes make certain make sure pick up pick up on size up

Antonyms

STRONGEST

disprove invalidate

STRONG

aid assist confuse destroy help ignore look away miss misunderstand neglect overlook unsettle

VERB

verify

Synonyms

STRONGEST

authenticate certify check corroborate demonstrate double-check establish find out justify prove substantiate

STRONG

attest debunk document eye eyeball peg settle size support test try

WEAK

add up bear out check out check up hold up make certain make sure pan out size up stand up

Antonyms

STRONGEST

conceal confuse contradict deny discredit disprove hide invalidate reject

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:

check up on

I was born with a heart defect, so I see a cardiologist every year to check up on it.

From MarketWatch ● Jul. 28, 2026

One soldier told the Chileans they had orders to check up on the foreign search-and-rescue teams because they could be “Yankee spies,” Lermanda said in a video interview with local journalists.

From The Wall Street Journal ● Jun. 30, 2026

But how many of the inaccuracies would people spot during a quick scroll and who is emailing to check up on council services?

From BBC ● Jan. 8, 2026

Minutes after AFP met with him, a flurry of officials arrived to "check up" on his welfare.

From Barron's ● Oct. 14, 2025

At midmorning, Jerry Jaax was working in Room C. He decided to take a break to rest and check up on his people.

From "The Hot Zone" by Richard Preston

check up on

Example Sentences

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