"pledged" in the verb sense
1. pledge, plight
promise solemnly and formally
"I pledge that I will honor my wife"
2. pledge, subscribe
pay (an amount of money) as a contribution to a charity or service, especially at regular intervals
"I pledged $10 a month to my favorite radio station"
3. toast, drink, pledge, salute, wassail
propose a toast to
"Let us toast the birthday girl!"
"Let's drink to the New Year"
4. pledge
give as a guarantee
"I pledge my honor"
5. pledge
bind or secure by a pledge
"I was pledged to silence"
"pledged" in the adjective sense
1. pledged, sworn
bound by or as if by an oath
"according to an early tradition became his sworn brother"
"sworn enemies"
Source: WordNet® (An amazing lexical database of English)
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