spot2 S3 past tense and past participle spotted, present participle spotting [transitive]
to notice someone or something, especially when they are difficult to see or recognize:
I spotted a police car behind us.
It can be hard for even a trained doctor to spot the symptoms of lung cancer.
spot somebody doing something
Meg spotted someone coming out of the building.
difficult/easy to spot
Drug addicts are fairly easy to spot.
One of the station staff spotted that I was in difficulty, and came to help.
to have small round marks or small pieces of something on the surface:
The windscreen was spotted with rain.
3 American EnglishDS
to give the other player in a game an advantage
spot somebody something
He spotted me six points and he still won.