hook vs bolus hook

hook and bolus hook both are nouns.

Word	Noun	Adjective	Verb	Adverb
hook	Yes	No	Yes	No
bolus hook	Yes	No	No	No

As nouns, bolus hook is a hyponym of hook; that is, bolus hook is a word with a more specific, narrower meaning than hook:

hook: a curved or bent implement for suspending or pulling something
bolus hook: an instrument in a Jacquard loom that raises or lowers the harness, which carries and guides the warp thread so that the weft will either lie above or below it, which in turn creates the pattern.

Other hyponyms of hook include boat hook, buttonhook, crotchet, cup hook, fishhook, gaff, gig, meat hook, skyhook.

hook (noun)	bolus hook (noun)
a short swinging punch delivered from the side with the elbow bent	an instrument in a Jacquard loom that raises or lowers the harness, which carries and guides the warp thread so that the weft will either lie above or below it, which in turn creates the pattern.
a golf shot that curves to the left for a right-handed golfer
a basketball shot made over the head with the hand that is farther from the basket
a curved or bent implement for suspending or pulling something
a mechanical device that is curved or bent to suspend or hold or pull something
a catch for locking a door
anything that serves as an enticement
a sharp curve or crook; a shape resembling a hook

hook (verb)	bolus hook (verb)
approach with an offer of sexual favors
entice and trap
secure with the foot
to cause (someone or oneself) to become dependent (on something, especially a narcotic drug)
fasten with a hook
catch with a hook
hit with a hook
hit a ball and put a spin on it so that it travels to the left
make a piece of needlework by interlocking and looping thread with a hooked needle
make off with belongings of others
take by theft
rip off; ask an unreasonable price