riding bitt vs bitt

riding bitt and bitt both are nouns.

Word	Noun	Adjective	Verb	Adverb
riding bitt	Yes	No	No	No
bitt	Yes	No	Yes	No

As nouns, bitt is a hypernym of riding bitt; that is, bitt is a word with a broader meaning than riding bitt:

riding bitt: one of the large bitts used to secure the cable of a dropped anchor
bitt: a strong post (as on a wharf or quay or ship for attaching mooring lines)

Other hypernyms of riding bitt include bollard.

riding bitt (noun)	bitt (noun)
one of the large bitts used to secure the cable of a dropped anchor	a strong post (as on a wharf or quay or ship for attaching mooring lines)

riding bitt (verb)	bitt (verb)
	secure with a bitt