adverb
- in or toward the middle part of a ship or aircraft; midway between the ends.
- along the central fore-and-aft line of a ship or aircraft.
- in or toward the center of anything: a long, narrow office with a desk placed amidships.
adjective
- of, relating to, or located in the middle part of a ship or aircraft.
adverb, adjective (postpositive)
- nautical at, near, or towards the centre of a vessel