Meaning of “single sb/sth out” - Learner’s Dictionary

single sb/sth out

phrasal verb with single us uk /ˈsɪŋɡl/ verb

to choose one person or thing from a group to criticize or praise them:

The report singled him out for special criticism.
The whole team played well - I don't want to single out any one player.

(Definition of “single sb/sth out” from the Cambridge Learner’s Dictionary © Cambridge University Press)