highway robbery vs terms

highway robbery and terms both are nouns.

Word	Noun	Adjective	Verb	Adverb
highway robbery	Yes	No	No	No
terms	Yes	No	No	No

As nouns, terms is a hypernym of highway robbery; that is, terms is a word with a broader meaning than highway robbery:

Other hypernyms of highway robbery include damage, price.

highway robbery (noun)	terms (noun)
robbery of travellers on or near a public road	the amount of money needed to purchase something
an exorbitant price	status with respect to the relations between people or groups