Noun (short for noun)
The fifth letter of Greek (e, ε, equivalent to English e, e)
Short vowel /e/
A person with mental retardation
A mathematically small (or close to zero) positive number.
[E-] Astronomical ε star (followed by the name of a specific constellation, that is, the fifth brightest star in the constellation)
Particle physics ε meson (elementary particle)
Computer minimum value
[American slang] Trace
Adjective (abbreviation for adjective)
This computer is very small.
tiny