tween/twiːn/EtymologyClipping of in between.nounAn action of tweening (inserting frames for continuity); a sequence of frames generated by tweening.“Because the results of a shape tween can be unpredictable, you can set shape hints to let Flash know how to proceed with the tween.”A child, especially a girl, in the age range between middle childhood and adolescence, normally between eight and thirteen years of age.“When Play Along — the holder of the Care Bears master toy license — placed Care Bears plushes in Spencer Gifts last year, tweens and teenage girls bought the toys.”A number or age in the twenties (plural only), or a person of that age.“At that time Frodo was still in his tweens, as the hobbits called the irresponsible twenties between childhood and coming of age at thirty-three.”verbTo generate intermediate frames in an animated sequence so as to give the appearance of smooth movement.“The two most important and advanced ingredients of today's animation are tweening and morphing.”adjOf or relating to tweenagers.“I am going to describe a video that threw me into a pit of despair. It begins with a woman running into the aisle of a big-box store and telling a tween boy that she needs phone chargers.”