Synonyms for Check up on:

• n.

  •
  • gather,
  • look up,
  • follow up,
  • research,
  • dig,
  • scout.
  •check into (noun)
  • check into.
  •check over (noun)
  • check over.
  •check up on (noun)
  • look into,
  • Suss Out,
  • go over.

• v.

  •ascertain (verb)
  • divine,
  • get down pat,
  • get hold of,
  • make certain,
  • find out,
  • size up,
  • size,
  • discover,
  • settle,
  • fix,
  • get it down,
  • eye,
  • eyeball,
  • make sure,
  • get the hang of,
  • learn,
  • learn the ropes,
  • establish,
  • tell,
  • read,
  • look-see,
  • check out,
  • pick up on,
  • peg,
  • double-check,
  • see,
  • confirm,
  • determine,
  • catch on,
  • identify,
  • get down cold,
  • pick up.
  •verify (verb)
  • bear out,
  • pan out,
  • demonstrate,
  • hold up,
  • prove,
  • debunk,
  • document,
  • attest,
  • support,
  • justify,
  • add up.

• Other synonyms:

  •
  • investigative,
  • delve,
  • ferret out,
  • pry,
  • nose around,
  • poke around,
  • cast around for,
  • dig around,
  • reconnoiter,
  • nose into.
  •
  • sniff around,
  • chase up,
  • sift,
  • snoop.
  •
  • reconstruct,
  • consult.
  •
  • seek,
  • dig into.
  •
  • try.
  •
  • pump.
  •ascertain
  • made sure,
  • Pegged,
  • check on,
  • eyeballing,
  • sized,
  • sizing,
  • double-checked,
  • made certain,
  • picking up on,
  • picked up,
  • makes certain,
  • look see,
  • double checking,
  • double check,
  • got down,
  • got hold of,
  • sizing up,
  • caught on,
  • eyeballs,
  • double checked,
  • getting hold of,
  • double-checks,
  • eyeballed.
  •inspect
  • make the rounds.
  •make sure
  • ascertain.
  •Other relevant words:
  • peer,
  • cross-check,
  • validate,
  • inspect,
  • postmortem,
  • probe,
  • appraise,
  • search,
  • survey,
  • recheck,
  • corroborate,
  • certify,
  • observe,
  • peruse,
  • investigate,
  • audit,
  • weigh,
  • overhaul,
  • scrutinise,
  • go through,
  • report,
  • substantiate,
  • review,
  • vet,
  • pore over,
  • scan,
  • explore,
  • scrutinize,
  • look at,
  • inquire into,
  • case,
  • run over,
  • assess,
  • test,
  • authenticate,
  • autopsy,
  • pass over,
  • collate,
  • follow,
  • check and doublecheck,
  • go into,
  • monitor.

Antonyms for Check up on:

• v.

  • ascertain
    confuse, help, misunderstand, look away, disprove, neglect, unsettle, miss, overlook, aid, invalidate, assist, ignore, destroy.
  • verify
    contradict, deny, reject, discredit, conceal, hide.