Obligatory sound Synonyms

Obligatory replaced

Definitions for Obligatory


  • (adjective) forcing one's compliance or participation by or as if by law
  • (adjective) used or heard so often as to be dull
  • (adjective) required by obligation or compulsion or convention

Synonyms for phrase

OS abbreviation

OS is an abbreviation for Obligatory Sound
What does OS stand for?
OS stands for "Obligatory Sound"

Sound replaced

Definitions for Sound


  • (verb) to continue or be repeated in a series of reflected sound waves
  • (verb) to give the impression of being
  • (verb) to make known (as an idea, emotion, or opinion)