LW

LW (countable and uncountable, plural LWs)

1. (electronics) Initialism of long wave.
2. Initialism of low water.
3. (linguistics) Abbreviation of loanword.
4. Initialism of letter writer — 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.
5. Initialism of left wing.

(electronics):

• MW, SW

(electronics):

• RF, MF, LF, VLF, ELF

LW

1. Initialism of Lawyer's Weekly, an Australian newspaper for lawyers

• WL

LW

1. Abbreviation of Lehnwort.