Sadd

name, noun

name, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Acronym of structure aided drug design. abbreviation, acronym, alt-of
Proper Noun
  1. 1
    Initialism of Students Against Destructive Decisions (formerly known as Students Against Driving Drunk). abbreviation, alt-of, initialism
  2. 2
    A surname from Middle English.

Etymology

From Middle English sad (“considered, thoughtful, serious”), a nickname for a serious or solemn person.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.