supertall

/S UW1 P ER0 T AH0 L/
adjective
  1. 1

    Extremely tall.

  2. 2

    (architecture, of a building) Exceeding 984 feet (300 metres) in height.

noun
  1. 1

    (architecture) A building between 300m and 600m tall, approximately 1000ft to 2000ft tall. A tall building taller than a plain tall but shorter than a megatall.

  2. 2

    A very tall building.