Obligatory sink 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 Sink
What does OS stand for?
OS stands for "Obligatory Sink"

Sink replaced

Definitions for Sink


  • (verb) to become worse or of less value
  • (verb) to go to a lower level especially abruptly
  • (verb) to refrain from openly showing or uttering