decrease vs physical process

decrease and physical process both are nouns.

Word	Noun	Adjective	Verb	Adverb
decrease	Yes	No	Yes	No
physical process	Yes	No	No	No

As nouns, physical process is a hypernym of decrease; that is, physical process is a word with a broader meaning than decrease:

decrease: a process of becoming smaller or shorter
physical process: a sustained phenomenon or one marked by gradual changes through a series of states

Other hypernyms of decrease include process.

decrease (noun)	physical process (noun)
the act of decreasing or reducing something	a sustained phenomenon or one marked by gradual changes through a series of states
the amount by which something decreases
a change downward
a process of becoming smaller or shorter

decrease (verb)	physical process (verb)
decrease in size, extent, or range
make become smaller