verb
: examine , inspect , test , investigate
the police became suspicious and checked up
check up some doubtful points
— often used with on
check up on his alibi
verb
: examine , inspect , test , investigate
the police became suspicious and checked up
check up some doubtful points
— often used with on
check up on his alibi
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012