sand trap vs bunker

sand trap and bunker both are nouns.

Word	Noun	Adjective	Verb	Adverb
sand trap	Yes	No	No	No
bunker	Yes	No	Yes	No

As nouns, sand trap and bunker are synonyms defined as:

Other synonyms of sand trap include trap.

sand trap (noun)	bunker (noun)
a hazard on a golf course	a hazard on a golf course
	a fortification of earth; mostly or entirely below ground
	a large container for storing fuel

sand trap (verb)	bunker (verb)
	hit a golf ball into a bunker
	transfer cargo from a ship to a warehouse
	fill (a ship's bunker) with coal or oil