fare increase vs increment

fare increase and increment both are nouns.

Word	Noun	Adjective	Verb	Adverb
fare increase	Yes	No	No	No
increment	Yes	No	No	No

As nouns, increment is a hypernym of fare increase; that is, increment is a word with a broader meaning than fare increase:

fare increase: increase in the sum charged for riding in a public conveyance
increment: the amount by which something increases

Other hypernyms of fare increase include increase.

fare increase (noun)	increment (noun)
increase in the sum charged for riding in a public conveyance	the amount by which something increases
	a process of becoming larger or longer or more numerous or more important