Impawn, a legal term used in the context of pawnbroking, refers to the act of giving an item as collateral for an amount of money borrowed. Synonyms for the word impawn include pledge, mortgage, pawn, deposit, hock, and hypothecate. All of these words are used to describe the process of offering something valuable as security for a loan. While the word impawn is generally used in the context of pawnshops, these synonyms are used more widely to describe a range of financial transactions. The choice of word used depends on the nature of the transaction, the items offered as collaterals, as well as legal requirements surrounding the process.