check up on

• check on

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

1. To examine or inspect something in order to determine its condition; to check out.

   I will check up on the car tomorrow.

2. To look after or inquire about someone's well-being.

   Katie's sick, so I need to check up on her and see if she needs anything.