toecap vs protective covering

toecap and protective covering both are nouns.

Word	Noun	Adjective	Verb	Adverb
toecap	Yes	No	No	No
protective covering	Yes	No	No	No

As nouns, protective covering is a hypernym of toecap; that is, protective covering is a word with a broader meaning than toecap:

toecap: a protective leather or steel cover for the toe of a boot or shoe, reinforcing or decorating it
protective covering: a covering that is intend to protect from damage or injury

Other hypernyms of toecap include protection, protective cover.

toecap (noun)	protective covering (noun)
a protective leather or steel cover for the toe of a boot or shoe, reinforcing or decorating it	the tough natural covering of some organisms
	a covering that is intend to protect from damage or injury