natural philosophy vs bombard

natural philosophy and bombard both are nouns.

Word	Noun	Adjective	Verb	Adverb
natural philosophy	Yes	No	No	No
bombard	Yes	No	Yes	No

natural philosophy (noun)	bombard (noun)
the science of matter and energy and their interactions	a large shawm; the bass member of the shawm family

natural philosophy (verb)	bombard (verb)
	direct high energy particles or radiation against
	address with continuously or persistently, as if with a barrage
	throw bombs at or attack with bombs
	cast, hurl, or throw repeatedly with some missile