looker vs watcher

looker and watcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
looker	Yes	No	No	No
watcher	Yes	No	No	No

As nouns, looker and watcher are synonyms defined as:

looker and watcher: a close observer; someone who looks at something (such as an exhibition of some kind)

Other synonyms of looker include spectator, viewer, witness.

looker (noun)	watcher (noun)
a very attractive or seductive looking woman	a guard who keeps watch
a close observer; someone who looks at something (such as an exhibition of some kind)	a close observer; someone who looks at something (such as an exhibition of some kind)
	a person who keeps a devotional vigil by a sick bed or by a dead body