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Originally posted by MLNerdNmore

(as a side note, I had no idea what "tween" means, seems like a term that's only used professionally/between devs)

Tweens basically are moving between point a to point b. Basically all leaps, and some dashes use tweens to do the movement. 

Most dashes more literally tell the god to move in a direction, rather than to a specific point, which is the distinction they have.