collar vs take hold of

collar is a noun but take hold of is not a noun.

Word	Noun	Adjective	Verb	Adverb
collar	Yes	No	Yes	No
take hold of	No	No	Yes	No

As verbs, take hold of is a hypernym of collar; that is, take hold of is a word with a broader meaning than collar:

Other hypernyms of collar include clutch, prehend, seize, take hold.

As verbs, take hold of is a hypernym of collar; that is, take hold of is a word with a broader meaning than collar:

Other hypernyms of collar include clutch, prehend, seize, take hold.

collar (noun)	take hold of (noun)
the act of apprehending (especially apprehending a criminal)
a figurative restraint
a band that fits around the neck and is usually folded over
necklace that fits tightly around a woman's neck
a band of leather or rope that is placed around an animal's neck as a harness or to identify it
the stitching that forms the rim of a shoe or boot
a short ring fastened over a rod or shaft to limit, guide, or secure a machine part
anything worn or placed about the neck
(zoology) an encircling band or marking around the neck of any animal

collar (verb)	take hold of (verb)
take into custody	take into your hands deliberately
furnish with a collar
seize by the neck or collar