stool vs faeces

stool and faeces both are nouns.

Word	Noun	Adjective	Verb	Adverb
stool	Yes	No	Yes	No
faeces	Yes	No	No	No

As nouns, stool and faeces are synonyms defined as:

Other synonyms of stool include BM, dejection, faecal matter, fecal matter, feces, ordure.

stool (noun)	faeces (noun)
a simple seat without a back or arms	solid excretory product evacuated from the bowels
a plumbing fixture for defecation and urination
(forestry) the stump of a tree that has been felled or headed for the production of saplings
solid excretory product evacuated from the bowels

stool (verb)	faeces (verb)
have a bowel movement
grow shoots in the form of stools or tillers
react to a decoy, of wildfowl
lure with a stool, as of wild fowl