bit - a single, basic unit of information, used in connection with computers and information theory.
The three-letter word for a work unit is "erg".
A three-letter word ending in "ux" is "lux," which means a unit of illumination or light.
erg
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You may be thinking of CPU, but CPU is not a word, it is an acronym for Central Processing Unit
One seven letter word, One two letter word and a five letter word, One three letter word and a four letter word, One three letter word and two two letter words, Two three letter words, Three two letter words, A two letter word and a four letter word, A six letter word, A two letter word and a three letter word, A five letter word, Two two letter words, A four letter word, A three letter word, or A two letter word.
Unit. A four letter word beginning with the letter 'u' is unit. Also used, uvea, urea, Utah
Units of measurement:amp,rod (length equal to 1/320 mile),ton,
I've is a three letter word. I'll is another three letter word.
Imp is a three-letter word for rapscallion.
A three letter word for help is aid.
A three letter word for gender is sex.