Optional building 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

OB abbreviation

OB is an abbreviation for Optional Building
What does OB stand for?
OB stands for "Optional Building"

Building replaced

Definitions for Building


  • (noun) something built as a dwelling , shelter, or place for human activity
  • (noun) the act of constructing something
  • (noun) the commercial activity involved in repairing old structures or constructing new ones