turn vs tack

turn and tack both are nouns.

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

As verbs, tack is a hyponym of turn; that is, tack is a word with a more specific, narrower meaning than turn:

turn (noun)	tack (noun)
the act of changing or reversing the direction of the course	sailing a zigzag course
the act of turning away or in the opposite direction	(nautical) the act of changing tack
taking a short walk out and back	a short nail with a sharp point and a large head
a favor for someone	gear for a horse
(game) the activity of doing something in an agreed succession	(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
turning or twisting around (in place)	the heading or position of a vessel relative to the trim of its sails
a short performance that is part of a longer program
a movement in a new direction
an unforeseen development
a circular segment of a curve
(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)

turn (verb)	tack (verb)
twist suddenly so as to sprain	reverse (a direction, attitude, or course of action)
change to the contrary	fasten with tacks
go sour or spoil	sew together loosely, with large stitches
pass into a condition gradually, take on a specific property or attribute; become	fix to; attach
undergo a transformation or a change of position or action	create by putting components or members together
change color	turn into the wind
become officially one year older
have recourse to or make an appeal or request for help or information to
direct at someone
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