Definitions

1. adjective

situated or directed away from the center or middle; on the outside

“The outer layer of the Earth’s atmosphere protects us from extreme temperatures.”

2. noun

the outer part or surface of something

“The outer rim of the city was lined with tall skyscrapers.”

3. adverb

on or at the outside; away from the center or middle

“She sat in the outer room with a view of the garden.”

4. preposition

at or on the outside of something

“He stood outer the house, waiting for the owner to answer the door.”