teller vs cashier

teller and cashier both are nouns.

Word	Noun	Adjective	Verb	Adverb
teller	Yes	No	No	No
cashier	Yes	No	Yes	No

As nouns, teller and cashier are synonyms defined as:

teller and cashier: an employee of a bank who receives and pays out money

Other synonyms of teller include bank clerk.

teller (noun)	cashier (noun)
an employee of a bank who receives and pays out money	an employee of a bank who receives and pays out money
an official appointed to count the votes (especially in legislative assembly)	a person responsible for receiving payments for goods and services (as in a shop or restaurant)
someone who tells a story

teller (verb)	cashier (verb)
	discharge with dishonor, as in the army
	discard or do away with