coracle vs small boat

coracle and small boat both are nouns.

Word	Noun	Adjective	Verb	Adverb
coracle	Yes	No	No	No
small boat	Yes	No	No	No

As nouns, small boat is a hypernym of coracle; that is, small boat is a word with a broader meaning than coracle:

coracle: a small rounded boat made of hides stretched over a wicker frame; still used in some parts of Great Britain
small boat: a boat that is small

coracle (noun)	small boat (noun)
a small rounded boat made of hides stretched over a wicker frame; still used in some parts of Great Britain	a boat that is small