Once-a-year periods Synonyms

We can't find synonyms for the phrase "Once-a-year periods", but we have synonyms for terms, you can combine them.

Once-a-year Synonyms

every twelve months

Periods Synonyms

OP abbreviation

OP is an abbreviation for Once-a-year Periods

What does OP stand for?

OP stands for "Once-a-year Periods"