top vs turn

top and turn both are nouns.

Word	Noun	Adjective	Verb	Adverb
top	Yes	Yes	Yes	No
turn	Yes	No	Yes	No

As nouns, turn is a hypernym of top; that is, turn is a word with a broader meaning than top:

top: the first half of an inning; while the visiting team is at bat
turn: (sports) a division of a game during which one team is on the offensive

Other hypernyms of top include bout, round.

top (noun)	turn (noun)
a garment (especially for women) that extends from the shoulders to the waist or hips	the act of changing or reversing the direction of the course
covering for a hole (especially a hole in the top of a container)	the act of turning away or in the opposite direction
a canvas tent to house the audience at a circus performance	taking a short walk out and back
a conical child's plaything tapering to a steel point on which it can be made to spin	a favor for someone
platform surrounding the head of a lower mast	(game) the activity of doing something in an agreed succession
the greatest possible intensity	turning or twisting around (in place)
the highest or uppermost side of anything	a short performance that is part of a longer program
the upper part of anything	a movement in a new direction
the top or extreme point of something (usually a mountain or hill)	an unforeseen development
the highest level or degree attainable; the highest stage of development	a circular segment of a curve
the first half of an inning; while the visiting team is at bat	(sports) a division of a game during which one team is on the offensive
	a time period for working (after which you will be relieved by someone else)

top (adjective)	turn (adjective)
situated at the top or highest position

top (verb)	turn (verb)
be the culminating event	twist suddenly so as to sprain
finish up or conclude	change to the contrary
cut the top off	go sour or spoil
strike (the top part of a ball in golf, baseball, or pool) giving it a forward spin	pass into a condition gradually, take on a specific property or attribute; become
pass by, over, or under without making contact	undergo a transformation or a change of position or action
reach or ascend the top of	change color
provide with a top or finish the top (of a structure)	become officially one year older
be superior or better than some standard	have recourse to or make an appeal or request for help or information to
be at the top of or constitute the top or highest point	direct at someone
be ahead of others; be the first	shape by rotating on a lathe or cutting device or a wheel
	let (something) fall or spill from a container
	alter the functioning or setting of
	cause (an object) to assume a crooked or angular form
	to break and turn over earth especially with a plow
	to change orientation or direction
	cause to move around a center so as to show another side of
	cause to move around or rotate
	pass to the other side of
	move around an axis or a center
	to send or let go
	cause to move along an axis or into a new direction
	channel one's attention, interest, thought, or attention toward or away from something
	get by buying and selling
	accomplish by rotating
	undergo a change or development
	cause to change or turn into something different;assume new characteristics