glue vs animal glue

glue and animal glue both are nouns.

Word	Noun	Adjective	Verb	Adverb
glue	Yes	No	Yes	No
animal glue	Yes	No	No	No

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

glue: cement consisting of a sticky substance that is used as an adhesive
animal glue: a protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses

Other hyponyms of glue include casein glue, fish glue, marine glue.

glue (noun)	animal glue (noun)
cement consisting of a sticky substance that is used as an adhesive	a protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses

glue (verb)	animal glue (verb)
be fixed as if by glue
join or attach with or as if with glue