trade protection vs imposition

trade protection and imposition both are nouns.

Word	Noun	Adjective	Verb	Adverb
trade protection	Yes	No	No	No
imposition	Yes	No	No	No

As nouns, imposition is a hypernym of trade protection; that is, imposition is a word with a broader meaning than trade protection:

trade protection: the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition
imposition: the act of imposing something (as a tax or an embargo)

Other hypernyms of trade protection include infliction.

trade protection (noun)	imposition (noun)
the imposition of duties or quotas on imports in order to protect domestic industry against foreign competition	the act of imposing something (as a tax or an embargo)
	an uncalled-for burden