escrow vs written agreement

escrow and written agreement both are nouns.

Word	Noun	Adjective	Verb	Adverb
escrow	Yes	No	No	No
written agreement	Yes	No	No	No

As nouns, written agreement is a hypernym of escrow; that is, written agreement is a word with a broader meaning than escrow:

escrow: a written agreement (or property or money) delivered to a third party or put in trust by one party to a contract to be returned after fulfillment of some condition
written agreement: a legal document summarizing the agreement between parties

escrow (noun)	written agreement (noun)
a written agreement (or property or money) delivered to a third party or put in trust by one party to a contract to be returned after fulfillment of some condition	a legal document summarizing the agreement between parties