ford vs pass over

ford is a noun but pass over is not a noun.

Word	Noun	Adjective	Verb	Adverb
ford	Yes	No	Yes	No
pass over	No	No	Yes	No

As verbs, pass over is a hypernym of ford; that is, pass over is a word with a broader meaning than ford:

Other hypernyms of ford include cover, cross, cut across, cut through, get across, get over, track, traverse.

ford (noun)	pass over (noun)
the act of crossing a stream or river by wading or in a car or on a horse
a shallow area in a stream that can be forded

ford (verb)	pass over (verb)
cross a river where it's shallow	bypass
	rub with a circular motion
	travel across or pass over
	make a passage or journey from one place to another
	fly over