cash dispenser vs automatic teller machine

cash dispenser and automatic teller machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
cash dispenser	Yes	No	No	No
automatic teller machine	Yes	No	No	No

As nouns, cash dispenser and automatic teller machine are synonyms defined as:

cash dispenser and automatic teller machine: an unattended machine (outside some banks) that dispenses money when a personal coded card is used

Other synonyms of cash dispenser include ATM, automated teller, automated teller machine, automatic teller, cash machine.

cash dispenser (noun)	automatic teller machine (noun)
an unattended machine (outside some banks) that dispenses money when a personal coded card is used	an unattended machine (outside some banks) that dispenses money when a personal coded card is used