• a prospective member of a college fraternity or sorority
• a toast during the act of drinking in honor of someone
• a warrant or assurance, now used especially in fundraising for charitable purposes
• Pledge of Allegiance, used in the United States
• The "Teetotal Pledge" or "The Pledge", of abstinence from alcohol, taken by many Catholics in the 19th and 20th centuries, in a movement started by Theobald Mathew (temperance reformer) in Ireland in 1838.
• Singapore National Pledge
• Pledge (law), a bailment of personal property as a security for a debt
• An item to be sold to a pawnbroker
• The Pledge, a thriller by Friedrich Dürrenmatt
• The Pledge (film), based on the above book
• A brand of household cleaning products, made by S. C. Johnson & Son
• The Pledge Algorithm, for computerised Maze solving

See also

• Pledge drive
• Threshold pledge
• Virginity pledge
• Security interests - pledge
• Term limit