noun
plural pledges
[count] a serious promise or agreement
a promise to give money
something that you leave with another person as a way to show that you will keep your promise
US :a person who has promised to join a college fraternity or sorority but who has not been officially accepted into the group
the Pledge of Allegiance
US :a formal promise of loyalty to the United States that groups of people say together
verb
pledges; pledged; pledging
[+ obj] :to formally promise to give or do (something)
[+ obj] :to cause (someone) to formally promise something
[+ obj] :to give (something) as a way to show that you will keep your promise to someone
US :to promise to join (a college fraternity or sorority) [+ obj]