pledge vs collateralize

pledge is a noun but collateralize is not a noun.

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

As verbs, collateralize is a hyponym of pledge; that is, collateralize is a word with a more specific, narrower meaning than pledge:

Other hyponyms of pledge include give, hypothecate.

pledge (noun)	collateralize (noun)
a binding commitment to do or give or refrain from something
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

pledge (verb)	collateralize (verb)
promise solemnly and formally	pledge as a collateral
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