lookout vs looking at

lookout and looking at both are nouns.

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

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

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

Other hypernyms of lookout include look, looking.

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