Noun

1. A deposit of personal property as security for a debt
2. Someone accepted for membership but not yet fully admitted to the group
3. A drink in honor of or to the health of a person or event
4. A binding commitment to do or give or refrain from something

Verb

1. Promise solemnly and formally
2. Pay (an amount of money) as a contribution to a charity or service, especially at regular intervals
3. Propose a toast to
4. Give as a guarantee
5. Bind or secure by a pledge