How to spell EXTERIOS correctly?

If you meant to type "exterios" but want the correct spelling, then it should be "exteriors". The word "exteriors" refers to the outside or outer parts of something, typically buildings or physical structures. So, if you were referring to the outside of an object, "exteriors" is the accurate spelling you should use.

• exterior The exterior of the building was painted a vibrant shade of blue.
• exteriors The exteriors of the buildings have not been maintained for years.

Intertubing

• antedating
• entertain
• entertainer
• entertaining
• inditing
• inner-tubing
• intertwine
• interurban
• intuiting
• undertaking