teller (n.)

"bank clerk who pays or receives money," late 15c., "person who keeps accounts," agent noun from tell (v.) in its secondary sense of "count, enumerate," which is the primary sense of cognate words in many Germanic languages. Earlier "person who announces or narrates" (c. 1300).

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Definitions of teller from WordNet
teller (n.)
an official appointed to count the votes (especially in legislative assembly);
Synonyms: vote counter
teller (n.)
an employee of a bank who receives and pays out money;
Synonyms: cashier / bank clerk
teller (n.)
someone who tells a story;
Synonyms: narrator / storyteller
Teller (n.)
United States physicist (born in Hungary) who worked on the first atom bomb and the first hydrogen bomb (1908-2003);
Synonyms: Edward Teller