Tither's Amount is a term used to describe the amount of money that a person gives to a church or other religious organization. It is usually a TENTH of their income, and is often referred to as a tithe. The two crossword solutions for this term are 'TENTH' (5 letters) and 'ONETENTH' (8 letters). Both words refer to the same concept, with 'TENTH' being the shorter version and 'ONETENTH' being the longer version.