employment contract vs employment agreement

employment contract and employment agreement both are nouns.

Word	Noun	Adjective	Verb	Adverb
employment contract	Yes	No	No	No
employment agreement	Yes	No	No	No

As nouns, employment contract and employment agreement are synonyms defined as:

employment contract and employment agreement: contract between employer and employee

employment contract (noun)	employment agreement (noun)
contract between employer and employee	contract between employer and employee