redline vs single out

redline and single out both are verbs.

Word	Noun	Adjective	Verb	Adverb
redline	No	No	Yes	No
single out	No	No	Yes	No

As verbs, single out is a hypernym of redline; that is, single out is a word with a broader meaning than redline:

redline: discriminate in selling or renting housing in certain areas of a neighborhood
single out: treat differently on the basis of sex or race

Other hypernyms of redline include discriminate, separate.

redline (verb)	single out (verb)
discriminate in selling or renting housing in certain areas of a neighborhood	select from a group
	treat differently on the basis of sex or race