UEE Standard

UEE Standard (or simply Standard) is the primary language spoken by humans within the United Empire of Earth. It utilized the Roman alphabet for written communication, which itself led to Romanized variants of other alien languages; including Standard Romanized Xi'an (SRX) and Standard Romanized Banu (SRB).

UEE Standard doesn't imply that there is an English only monoculture. People speak all kind of languages.