patter vs spiel

patter and spiel both are nouns.

Word	Noun	Adjective	Verb	Adverb
patter	Yes	No	Yes	No
spiel	Yes	No	Yes	No

As nouns, patter and spiel are synonyms defined as:

patter and spiel: plausible glib talk (especially useful to a salesperson)

Other synonyms of patter include line of gab.

patter (noun)	spiel (noun)
plausible glib talk (especially useful to a salesperson)	plausible glib talk (especially useful to a salesperson)
a quick succession of light rapid sounds

patter (verb)	spiel (verb)
make light, rapid and repeated sounds	speak at great length (about something)
rain gently	replay (as a melody)