tack vs rig up

tack is a noun but rig up is not a noun.

Word	Noun	Adjective	Verb	Adverb
tack	Yes	No	Yes	No
rig up	No	No	Yes	No

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

Other hyponyms of tack include comfit, confect, confection, confuse, jumble, mix up, reassemble, configure, compound.

tack (noun)	rig up (noun)
sailing a zigzag course
(nautical) the act of changing tack
a short nail with a sharp point and a large head
gear for a horse
(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
the heading or position of a vessel relative to the trim of its sails

tack (verb)	rig up (verb)
reverse (a direction, attitude, or course of action)	erect or construct, especially as a temporary measure
fasten with tacks
sew together loosely, with large stitches
fix to; attach
create by putting components or members together
turn into the wind