Air or Heir?
Your choice!
Air
Exemple : ‘’I need to go outside to get some air!’’
"Air" and "heir" are homonyms and thus they are often mixed up. "Air" is a noun referring to the mixture of gases surrounding the earth and thus what we breathe in. It can also be used to express the manner in which someone behaves; if someone has "an air of confidence," it means that they are very confident.
Heir
Exemple : ‘’He is heir to the throne.’’
"Heir" is a noun referring to someone who will receive money, possessions or a position of importance after the death of the person who currently owns it.