Exa

from Wikipedia, the free encyclopedia

Exa stands for

10 ¹⁸ as a prefix for units of measure
Exa (company) (simulation software)

EXA for

the space agency Agencia Espacial Civil Ecuatoriana
EXA (software) for graphics acceleration
EXA (single lens reflex camera)

See also:

EXAA (energy exchange)
ECSA