unit of translation , UT (skrót)
translation unity

In word-based translation, the fundamental unit of translation is a word in some natural language.

For example, an example-based machine translation system would learn three units of translation from the above example:

This project investigates the conclusions of Bennet (1994) about the size of the UT (unit of translation), based on the raw translations of a sample text as produced by four competitive PC programs.