plural of available seat-mile

(informal) Used with an arbitrary number to describe a person who looks or feels very bad.

A unit of area (abbreviation sq mi or sq. mi. or mi²) equal to the area of a square the sides of which are each one mile long.

A unit of measure expressed in number of short tons moved over a specific distance in miles.

(logistics, transport) The final stage of delivery of goods, etc., from a distribution centre to the consumer, often involving greater effort or expense.

(nautical) A unit of length corresponding approximately to one minute of arc of latitude along any meridian. By international agreement it is exactly 1,852 metres (approximately 6,076 feet or 1.151 statute mile).

An ancient Roman unit of itinerant distance of 1000 paces (mille passus, hence also "mile" from Latin mille, "1000"). Indirectly standardized to 5000 Roman feet by Agrippa in 29 BC. In modern times, Agrippa's Imperial Roman mile is empirically estimated to have been around 1481 meters (1620 yards, 4860 English feet, 0.92 English miles); compared with a modern mile, which is 5280 feet.

(UK) The mile of 5,280 feet or 1,760 yards, distinguished from the traditional mile of 5,000 feet employed before the 1593 Weights and Measures Act.

the City of London

a nautical mile