Optional session Synonyms

Optional replaced

unwanted session

possible session

Definitions for Optional

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

OS abbreviation

OS is an abbreviation for Optional Session

What does OS stand for?

OS stands for "Optional Session"

Session replaced

optional time

optional class

optional spell

Definitions for Session

(noun) a meeting for execution of a group 's functions
(noun) the time during which a school holds classes
(noun) a meeting devoted to a particular activity