(music) a non-harmonic tone that is a second from a note in the previous chord and more than a second from a note in the next chord

A pidgin spoken in Greenland.

(law) A clause in a lease or contract that guarantees a change in the agreement price once a particular factor beyond control of either party affecting the value has been determined.

plural of escalator clause

(computing) A key on a computer keyboard that can be used to cancel an operation.

akutaq

(physics) kinetic quintessence

A fuel-free safe spot, consisting of burning grass as a method of defense against a forest fire. / (idiomatic) An unconventional or counterintuitive solution to a difficult problem.

plural of escape key

(horology) The wheel of an escapement.