tween

An action of tweening (inserting frames for continuity); a sequence of frames generated by tweening.

To generate intermediate frames in an animated sequence so as to give the appearance of smooth movement.

A person in their twenties, between 20 and 29 years old. Possibly including 30-32.

A child, usually a girl, in the age range between young childhood and adolescence, normally between eight and thirteen years of age.

Of or having to do with tweenagers.