| 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.
|
| 6. | amounting to eight in number. |
, OIr ocht, Welsh wyth, Breton eiz, Tocharian B okt, Lith aštuonì, Albanian tetë, Armenian uth, Pers hasht, Skt aṣṭáu; appar. an old dual in form, but not clear of what