check up

check up (third-person singular simple present checks up, present participle checking up, simple past and past participle checked up)

1. (most often in phrasal verb "check up on") To verify through brief investigation or revisit for assurance that there are no problems.
   • 2006, Marvlous, By Any Means, page 28:

     Before when he just gave her money and checked up on her his visits where few and far between unless she called and asked for something, which she didn't like doing too much.

   • 2014, Jean Trumpington, Coming Up Trumps: A Memoir:

     So instead she checked up on them and discovered that they were very respectable, which made her much happier.

   • 2015, Susaik Chu, My Search:

     Every three months, I checked up with Dr. Ma and took a blood sample test to check on my diabetic HGBA1c, glucose fasting data range, and my lipid data for my blood test results.

   I dropped by to check up on my friend.

2. To verify something's accuracy.

   He's checking up the figures.

   • 2007, John Barnes, The Sky So Big and Black:

     I hated myself, but I called up the almanac, and for the very first time ever, I checked up on something Perry had told me.

3. To seem correct or plausible; to comport with known facts; to check out (with other facts).

   The numbers she provided check up with my own data.

• checkup
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