talk vs spiel

talk and spiel both are nouns.

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

As verbs, spiel is a hyponym of talk; that is, spiel is a word with a more specific, narrower meaning than talk:

talk (noun)	spiel (noun)
the act of giving a talk to an audience	plausible glib talk (especially useful to a salesperson)
an exchange of ideas via conversation
idle gossip or rumor
a speech that is open to the public
discussion; (`talk about' is a less formal alternative for `discussion of')

talk (verb)	spiel (verb)
express in speech	speak at great length (about something)
exchange thoughts; talk with	replay (as a melody)
reveal information
use language
deliver a lecture or talk
divulge confidential information or secrets