cashier vs bank clerk

cashier and bank clerk both are nouns.

Word	Noun	Adjective	Verb	Adverb
cashier	Yes	No	Yes	No
bank clerk	Yes	No	No	No

As nouns, cashier and bank clerk are synonyms defined as:

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

Other synonyms of cashier include teller.

cashier (noun)	bank clerk (noun)
an employee of a bank who receives and pays out money	an employee of a bank who receives and pays out money
a person responsible for receiving payments for goods and services (as in a shop or restaurant)

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