Pronunciation: (āt),[key] —n. 1. a cardinal number, seven plus one.
2. a symbol for this number, as 8 or VIII.
3. a set of this many persons or things, as the crew of an eight-oared racing shell.
4. a playing card the face of which bears eight pips.
5. Informal. a. an automobile powered by an eight-cylinder engine.
b. an eight-cylinder engine.