Definition
to check up on: to watch, to observe, to investigate; to ensure that (someone) is ok
Could you check up on my sister while I'm gone? She doesn't seem to be doing too well.
Still unsure of the best way to use 'To check up on'? Improve your English thanks to our online English lessons. We offer a free test as well as a free level assessment!
What our users say:
Test your English with Gymglish today and get a free level assessment
Absolutely free - no strings attached.