on the tip of one's tongue

listen to the pronunciation of on the tip of one's tongue
الإنجليزية - الإنجليزية
known but not quite remembered

Her name is on the tip of my tongue; it could be Kathy or Karen or something.

(deyim) Be almost able to remember a specific fact such as a name or place
can't think of the answer on command, unable to respond immediately
on the tip of my tongue
(deyim) Almost able to recall, beginning to remember

Her name is on the tip of my tongue. It begins with K.

on the tip of his tongue
he can almost remember it