crab vs channelize

crab is a noun but channelize is not a noun.

Word	Noun	Adjective	Verb	Adverb
crab	Yes	No	Yes	No
channelize	No	No	Yes	No

As verbs, channelize is a hypernym of crab; that is, channelize is a word with a broader meaning than crab:

Other hypernyms of crab include channelise, direct, guide, head, maneuver, manoeuver, manoeuvre, point, steer.

crab (noun)	channelize (noun)
a stroke of the oar that either misses the water or digs too deeply
decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
a louse that infests the pubic region of the human body
the edible flesh of any of various crabs
a quarrelsome grouch

crab (verb)	channelize (verb)
complain	send from one person or place to another
fish for crab	cause to form a channel
scurry sideways like a crab	make a channel for; provide with a channel
direct (an aircraft) into a crosswind	direct the course; determine the direction of travelling