- (electronics) Initialism of .
- Initialism of .
- (linguistics) Abbreviation of .
- Initialism of — used as short-hand in comments to 'Dear Dorothy' advice columns. If there is more than one letter, then it's LWn, where n is the first/second etc. letter, such as LW1, LW2, and so on.
- Initialism of , an Australian newspaper for lawyers
- Abbreviation of .