You know what it looks like… but what is it called?
TAKE THE QUIZ“know someone”
The following 5 entries include the term know someone.
know (someone) by name
idiom: to know a person well enough to know the person's name
know (someone) of old
idiom: to have known (someone) for a long time
know someone when
idiom: to know someone before he or she was famous or successful
not know someone from Adam
idiom: to have never met with someone : to not know someone at all
to know someone is to love him/her
idiom—used to say that the people who know someone feel great affection for him or her