Thesaurus.com
Dictionary.com
Definitions

check up

VERB
case
Synonyms
STRONG
canvass examine inspect scrutinize study view
WEAK
check out check over
Antonyms
STRONGEST
overlook
STRONG
ignore neglect
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 on check out 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
VERB
investigate
Synonyms
STRONGEST
consider examine explore inspect interrogate probe question review scrutinize search study
STRONG
bug case delve dig eyeball frisk inquire muckrake poke prospect pry read reconnoiter research scout sift spy tap wiretap
WEAK
be all ears check out check over feel out give the once-over go into inquisite listen in look into look over make inquiry nose around put to the test run down stake out
Antonyms
STRONGEST
answer forget ignore neglect reply
STRONG
leave alone overlook
VERB
probe
Synonyms
STRONGEST
check out delve into dig examine inquire interrogate penetrate poke scrutinize sift verify
STRONG
ask catechize check eye pierce prod prospect query quiz search sound study test
WEAK
check over feel around feel out go into look into put out a feeler sound out test the waters
Antonyms
STRONGEST
answer misunderstand
STRONG
ignore reply
VERB
study
Synonyms
STRONGEST
inspect investigate read research scrutinize survey view
STRONG
brainstorm canvass case compare deliberate figure peruse scope
WEAK
check out check over do research give the eagle eye keep tabs look into sort out
Antonyms
STRONGEST
ignore neglect
WEAK
forget
VERB
substantiate
Synonyms
STRONGEST
affirm confirm corroborate debunk demonstrate justify prove ratify validate verify
STRONG
actualize approve authenticate complete establish incarnate manifest materialize objectify personify realize reify support test try
WEAK
attest to bear out check out try on try out
Antonyms
STRONGEST
contradict deny discredit disprove invalidate reject veto
STRONG
disapprove ignore neglect oppose refuse
WEAK
break
VERB
survey
Synonyms
STRONGEST
assess canvass check check out estimate evaluate examine inspect look over observe overlook oversee review scan supervise
STRONG
appraise assay case contemplate measure plan plot prospect rate read reconnoiter research scope size study summarize superintend valuate value view
WEAK
check over give the once-over look upon set at size up stake out test the waters
Antonyms
STRONGEST
follow forget ignore neglect serve
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 on 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.

It added that Maradona’s health team too easily gave in to his demands, resulting in nurses failing to regularly check up on him.

From The Wall Street Journal • Apr. 16, 2026

Rebecca said she would be taking Flora to the vet for a full check up and she had become very overweight.

From BBC • Mar. 10, 2026

While most consumers keep their eyes on the price of gasoline to check up on inflation, natural gas is becoming just as important of a commodity.

From Barron's • Dec. 9, 2025

“My aunt will take time off to take care of him and bring him to his doctor’s check up appointments next week,” she wrote on Sunday.

From Los Angeles Times • Mar. 4, 2025

He hated to leave Boston to check up on his units because this would leave Catherine alone.

From "East of Eden" by John Steinbeck