pan vs pan out

pan is a noun but pan out is not a noun.

Word	Noun	Adjective	Verb	Adverb
pan	Yes	No	Yes	No
pan out	No	No	Yes	No

As verbs, pan and pan out are synonyms defined as:

pan and pan out: wash dirt in a pan to separate out the precious minerals

Other synonyms of pan include pan off.

pan (noun)	pan out (noun)
shallow container made of metal
cooking utensil consisting of a wide metal vessel

pan (verb)	pan out (verb)
express a totally negative opinion of	wash dirt in a pan to separate out the precious minerals
wash dirt in a pan to separate out the precious minerals	be a success
make a sweeping movement