take aim vs sight

take aim is not a noun while sight is a noun.

Word	Noun	Adjective	Verb	Adverb
take aim	No	No	Yes	No
sight	Yes	No	Yes	No

As verbs, sight is a hyponym of take aim; that is, sight is a word with a more specific, narrower meaning than take aim:

take aim: point or cause to go (blows, weapons, or objects such as photographic equipment) towards
sight: take aim by looking through the sights of a gun (or other device)

Other hyponyms of take aim include aim, direct, place, point, target, draw a bead on, hold, turn, swing, charge, level, point, level.

take aim (noun)	sight (noun)
	the act of looking or seeing or observing
	the ability to see; the visual faculty
	an instance of visual perception
	the range of vision
	a range of mental vision
	a place of interest, especially to visitors
	anything that is seen
	(often followed by `of') a large number or amount or extent

take aim (verb)	sight (verb)
point or cause to go (blows, weapons, or objects such as photographic equipment) towards	catch sight of; to perceive with the eyes
	take aim by looking through the sights of a gun (or other device)