Tween

Contraction of between.

Full definition of tween

(plural tweens)

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

2004, Andy Anderson, Mark Del Lima, Steve Johnson, Show Me Macromedia Flash MX 2004, page 237,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.
2009, Keith Butters, Teach Yourself VISUALLY Flash CS4 Professional, page 186,A tween is a method of creating animation, where you tell Flash where to start and where to end, and Flash does all the work in the middle. There are three types of tweens: Classic, Shape, and Motion.
2009, Rich Shupe, Learning Flash CS4 Professional, page 129,If you select the frames first, they will be replaced by the copied tween.

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

2004, D. P. Mukherjee, Fundamentals of Computer Graphics and Multimedia, page 117,The two most important and advanced ingredients of today's animation are tweening and morphing.
2005, Ellen Finkelstein, Gurdy Leete, Macromedia Flash 8 For Dummies, page 191,Simple motion tweening moves your objects in a straight line from here to there....You can also combine frame-by-frame animation with tweened animation.
2012, Christopher Griffith, Real-World Flash Game Development, 2nd Edition, page 113,The first parameter is the object that you want to tween, and the second parameter is the amount of time you want it to take in seconds.

(plural tweens)

1955 (1974), JRR Tolkien, The Fellowship of the Ring, At that time Frodo was still in his tweens, as the hobbits called the irresponsible twenties between childhood and the coming of age at thirty-three.

(plural tweens)

A person who is neither a young child nor an adolescent, one of an age in the range of 8 to 12 years old or a similar range.

2002 March 2, Billboard, Volume 114, Number 9, page 70,When Play Along â€” the holder of the Care Bears master toy license â€” placed Care Bears plushes in Spencer Gifts last year, tweens and teenage girls bought the toys.
2004, Lisa Johnson, Andrea Learned, Don't Think Pink: What Really Makes Women Buy--And How to Increase Your Share of This Crucial Market, page 5,This grade school thinking forgets that tweens are one of the most sophisticated groups of consumers in the marketplace, and that kids this age have zero tolerance for being treated like children.
2011, Hollie Smith, You and Your Tween: Managing the years from 9 to 13, Netmums, unnumbered page,However, if we worry too much about feeding our tweens, and if we show them we're worried, we could be passing on some unhealthy messages.