automatic teller machine vs cash machine

automatic teller machine and cash machine both are nouns.

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

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

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

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

automatic teller machine (noun)	cash 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