Sid

//sɪd// adv, name, noun, slang

adv, name, noun, slang ·Moderate ·College level

Definitions

Noun
  1. 1
    sadiki slang, uncountable
  2. 2
    Abbreviation of security identifier. abbreviation, alt-of

    "If the call to this function fails, you can assume the SID was invalid — even if it's a well-known SID."

  3. 3
    Sound Interface Device, a sound chip used in some early computers.
  4. 4
    Initialism of standard instrument departure. abbreviation, alt-of, initialism
Adverb
  1. 1
    once a day, such as for the administration of medication. From Latin semel in die. not-comparable
Proper Noun
  1. 1
    A short form of the male given names Sidney and Siddhartha.
  2. 2
    Alternative form of Syd (“unisex given name”). alt-of, alternative
  3. 3
    A minor river in East Devon, England, which flows into the English Channel at Sidmouth.

Example

More examples

"If the call to this function fails, you can assume the SID was invalid — even if it's a well-known SID."

Etymology

Shortened from sidiki or sidiqi.

Related phrases

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