addie

A diminutive of the female given names Adele, Adeline, Adelaide, or Addison or other names beginning with Ad-.

(slang) Adderall, especially when used as a cognitive enhancer or recreational drug.

A surname.

(rare) A diminutive of the male given names Adam or Adrian or other names beginning with Ad-.

(education) Acronym of analysis, design, development, implementation, evaluation, an instructional design framework that many instructional designers and training developers use to develop courses. [(countable) Decomposition into components in order to study (a complex thing, concept, theory, etc.).]