| AI | a designated route followed by airplanes in flying from one airport to another |
|---|---|
| AI | a letter sent by air mail |
| AI | a chamber that provides access to space where air is under pressure |
| AI | mail that is sent by air transport |
| AI | a large body of air with uniform characteristics horizontally |
| AI | a mattress that can be stored flat and inflated for use |
| AI | a US Airforce decoration for meritorious achievement while participating in an aerial flight |
| AI | a unit of length used in navigation |
| AI | expose to cool or cold air so as to cool or freshen |
| AI | expose to fresh air, as of old clothing |
| AI | a duct that provides ventilation as in mines |
| AI | plant that derives moisture and nutrients from the air and rain |