size up

US /saɪz ʌp/
UK /saɪz ʌp/
"size up" picture
1.

to assess or evaluate a person or situation

:
•
He tried to size up his opponent before the match.
•
She quickly sized up the situation and knew what to do.
:
assessevaluateappraisegaugejudge
:
sizemedium-sizedpocket-sizethat's about the size of iton the up and upupup to