Is Pledge a Real Word?

Pledge can be used as both a noun and a verb. As a noun, it can be a solemn promise you've made. Or even the person who makes that promise, like the freshman pledges who take an oath to join a fraternity in college. As a verb, it describes the act of promising.

What is the full meaning of pledge?

1 : to promise to give I pledge allegiance. 2 : to cause (someone) to promise something He pledged himself to secrecy. 3 : to give as assurance of a promise (as of repayment of a loan)

Do you make a pledge or take a pledge?

take the pledge, to make a solemn, formal vow to abstain from intoxicating drink.