know (someone or something) by sight

(redirected from know him by sight)

know (someone or something) by sight

To recognize someone or something based on its or their appearance, but without knowing its or their name or any other information. Everyone in town knows the iconic bridge by sight, but few know the history of when it was built and why it was designed to look so peculiar. Even after working there for a year, there were still some co-workers whom I only knew by sight.
See also: by, know, sight

know someone by sight

to recognize a person's face, but not know the name. I'm afraid I don't know her by sight. I know all my employees by sight.
See also: by, know, sight

know by sight

Recognize someone or something by appearance but not know the name or other details. For example, I know a lot of people by sight from the tennis courts. [1200s]
See also: by, know, sight

know somebody by ˈsight

recognize somebody and know who they are, without having spoken to them: I haven’t actually met Dr. Galston, but I know him by sight of course.
See also: by, know, sight, somebody
References in classic literature ?
He wandered all day through the buildings; and in a week or two, when he had been all over the yards, and into every room to which he had access, and learned that there was not a job anywhere, he persuaded himself that there might have been a change in the places he had first visited, and began the round all over; till finally the watchmen and the "spotters" of the companies came to know him by sight and to order him out with threats.
The Dream also features on this latest track and while you might not know him by sight you'd know him by sound.
Thus, employees still know him by sight and always call him by his first name.