lookout vs looking

lookout and looking both are nouns.

Word	Noun	Adjective	Verb	Adverb
lookout	Yes	No	No	No
looking	Yes	Yes	No	No

As nouns, looking is a hypernym of lookout; that is, looking is a word with a broader meaning than lookout:

lookout: the act of looking out
looking: the act of directing the eyes toward something and perceiving it visually; look

Other hypernyms of lookout include look, looking at.

lookout (noun)	looking (noun)
the act of looking out	the act of searching visually
a structure commanding a wide view of its surroundings	the act of directing the eyes toward something and perceiving it visually; look
an elevated post affording a wide view
a person employed to keep watch for some anticipated event

lookout (adjective)	looking (adjective)
	appearing to be as specified; usually used as combining forms