| EI | an eighth part |
|---|---|
| EI | position eight in a countable series of things |
| EI | coming next after the seventh and just before the ninth in position |
| EI | a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea |
| EI | a musical note having the time value of an eighth of a whole note |
| EI | the time of life between 80 and 90 |
| EI | the decade from 1980 to 1989 |
| EI | the decade from 1880 to 1979 |
| EI | position 80 in a countable series of things |
| EI | the ordinal number of eighty in counting order |
| EI | a coin worth eight pennies |
| EI | used of nail size |