Optional supplement Synonyms

Optional replaced

Definitions for Optional


  • (adjective) subject to one's freedom of choice
  • (adjective) possible but not necessary; left to personal choice

Synonyms for phrase

OS abbreviation

OS is an abbreviation for Optional Supplement
What does OS stand for?
OS stands for "Optional Supplement"

Supplement replaced

Definitions for Supplement


  • (noun) something added (as by growth )
  • (noun) something that serves to complete or make up for a deficiency in something else
  • (noun) a part added at the end of a book or periodical