Definition of host

• n. - The consecrated wafer, believed to be the body of Christ, which in the Mass is offered as a sacrifice; also, the bread before consecration.
• n. - An army; a number of men gathered for war.
• n. - Any great number or multitude; a throng.
• n. - One who receives or entertains another, whether gratuitously or for compensation; one from whom another receives food, lodging, or entertainment; a landlord.
• v. t. - To give entertainment to.
• v. i. - To lodge at an inn; to take up entertainment.