- a thin, crisp cake or biscuit, often sweetened and flavored.
- a thin disk of unleavened bread, used in the Eucharist, as in the Roman Catholic Church.
- a thin disk of dried paste, gelatin, adhesive paper, or the like, used for sealing letters, attaching papers, etc.
- a thin sheet of dry paste or the like, used to enclose a powder to be swallowed.
- any small, thin disk, as a washer or piece of insulation.
- a thin slice of semiconductor used as a base material on which single transistors or integrated-circuit components are formed.
- to seal, close, or attach by means of a wafer or wafers: to wafer a letter.
- a thin crisp sweetened biscuit with different flavourings, served with ice cream, etc
- a thin disc of unleavened bread used in the Eucharist as celebrated by the Western Church
- an envelope of rice paper enclosing a medicament
- a large single crystal of semiconductor material, such as silicon, on which numerous integrated circuits are manufactured and then separated
- a small thin disc of adhesive material used to seal letters, documents, etc
- to seal, fasten, or attach with a wafer
