TXT is a popular abbreviation for the word "text". However, there are several synonyms that can be used instead of "TXT", depending on the context. Some of the synonyms for "TXT" include message, SMS, IM, electronic communication, chat, and dispatch. Other synonyms that can be used interchangeably with "TXT" include words like correspondence, communication, note, memo, missive, and letter. These synonyms are all related to the act of sending or receiving information through electronic communication channels. Whether you're composing a quick text message or sending a longer email, there are many different words that can be used to convey the same meaning as "TXT".