Old sigma Synonyms

We can't find synonyms for the phrase "Old sigma", but we have synonyms for terms, you can combine them.

Old Synonyms

Sigma Synonyms

OS abbreviation

OS is an abbreviation for Old Sigma
What does OS stand for?
OS stands for "Old Sigma"

Definitions for Old


  • (adjective) being of advanced years and especially past middle age
  • (adjective) dating or surviving from the distant past
  • (adjective) having been such at some previous time

Definitions for Sigma