(aviation) Initialism of localizer type directional aid. / (chemistry) Initialism of lithium diisopropylamide. / (density functional theory) Initialism of local-density approximation.

plural of LDA

(computing) Initialism of Lightweight Directory Access Protocol.

(incel slang) Lay down and rot; to resign oneself to the hopelessness and unchangeability of one's circumstances, especially as a single, unattractive male.