transportation of people or goods by air (especially when other means of access are unavailable)

the state of needing something that is absent or unavailable

Not available, accessible, or at hand, not available or accessible or at hand, noun_ US, history A communist who operated underground and was therefore not available for a political leadership position

Having been put to use and therefore unavailable for use, Depleted or nearly depleted of fissionable material, Consumed, used up, exhausted, depleted, verb_ Simple past tense and past participle of spend

An abbreviation for Out of Office, a phrase often used in professional contexts to indicate that someone is unavailable for work (usually because they are on vacation), An abbreviation for hugs, usually placed at the end of a letter or in text messaging; often placed alongside xxx