Outer barriers Synonyms

Outer replaced

external barriers

apparent barriers

open barriers

visible barriers

physical barriers

natural barriers

Definitions for Outer

(adjective) situated on the outside or farther out
(adjective) located outside
(adjective) being on the outside or further from a center

OB abbreviation

OB is an abbreviation for Outer Barriers

What does OB stand for?

OB stands for "Outer Barriers"

Barriers replaced

outer boundary