covenant vs pledge

covenant and pledge both are nouns.

Word	Noun	Adjective	Verb	Adverb
covenant	Yes	No	Yes	No
pledge	Yes	No	Yes	No

As verbs, pledge is a hypernym of covenant; that is, pledge is a word with a broader meaning than covenant:

Other hypernyms of covenant include plight.

As verbs, pledge is a hypernym of covenant; that is, pledge is a word with a broader meaning than covenant:

Other hypernyms of covenant include plight.

covenant (noun)	pledge (noun)
a signed written agreement between two or more parties (nations) to perform some action	a binding commitment to do or give or refrain from something
(Bible) an agreement between God and his people in which God makes certain promises and requires certain behavior from them in return	a drink in honor of or to the health of a person or event
	someone accepted for membership but not yet fully admitted to the group
	a deposit of personal property as security for a debt

covenant (verb)	pledge (verb)
enter into a covenant or formal agreement	promise solemnly and formally
enter into a covenant	bind or secure by a pledge
	give as a guarantee
	propose a toast to
	pay (an amount of money) as a contribution to a charity or service, especially at regular intervals