Any life-long disability attributable to mental and/or physical impairments, manifested during childhood or later in the human development age (variously given as being before age 16, 18, or 21).

Any disability that affects the intellect or cognitive ability of a person.

A disability which prevents the sufferer from learning in a typical manner.

(rail transport, road transport) A measure of reliability that expresses the average distance travelled by a type of lorry, bus, rolling stock, etc, before preventative or reparative maintenance is required.

Revenge is best or most satisfying when delayed.

(medicine) psittacosis

(computing) A copy of all or part of a disk drive retained for backup or replication purposes.

An area that has been the site of a natural disaster that receives an official designation entitling residents and organizations within that area to receive relief and benefits.

The central area of a city in which there is a concentration of certain retail and business activities, especially in older cities with rail transportation.

(politics) A district represented by one or more elected officials.