Contraction of had (marking the pluperfect tense). / (some dialects) Contraction of had, possessed. / Contraction of would, contraction of should. / (colloquial) Contraction of did.

(role-playing games) Initialism of Dungeons and Dragons.

Initialism of drunk and disorderly.

Initialism of drink and drive.

Initialism of dinner and dance.

The fourth letter of the English alphabet, called dee and written in the Latin script.

The ordinal number fourth, derived from this letter of the English alphabet, called dee and written in the Latin script.

Abbreviation of died (or death)

(cricket) Abbreviation of declared.

(crosswords) Abbreviation of down. / (Malaysia)(informal) Abbreviation of already. Used to form the perfect tenses. Used in text messages.