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Dictionary.com
Definitions

check on

VERB
corroborate
Synonyms
STRONGEST
authenticate confirm justify substantiate validate verify
STRONG
approve certify document endorse establish okay prove ratify strengthen support sustain
WEAK
bear out check out check up declare true double-check give nod rubber-stamp
Antonyms
STRONGEST
disprove invalidate veto
STRONG
contradict deny disagree disapprove discredit oppose refuse reject
WEAK
disallow disclaim refute

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.

Police rushed to check on 91-year-old — and found her gaming.

From MarketWatch • Apr. 20, 2026

Believing he had fallen asleep, the nursery worker then left him alone, but staff did not physically check on him for about two hours.

From BBC • Apr. 17, 2026

DHS workers have been informed in a memo from department heads that they are slated to receive a check on Friday for back pay up until April 4.

From Barron's • Apr. 10, 2026

That night, the boys were alone in a makeshift shed and their uncle went to check on them.

From Los Angeles Times • Apr. 7, 2026

Ms. Blair stands up to check on me one last time.

From "Finding Junie Kim" by Ellen Oh