Definition of by sight
- I know her by sight but not by name.
: something that is seen : spectacle
: a thing regarded as worth seeing
: something ludicrous or disorderly in appearance
: to get or catch sight of
: to look at through or as if through a sight
: to aim by means of sights
: based on recognition or comprehension without previous study
: payable on presentation
What made you want to look up by sight? Please tell us where you read or heard it (including the quote, if possible).