1. play; playing; game
子どもの遊びでちょっと転んだだけよ。It was just a little tumble while playing a kids' game.
2. pleasure; amusement; pastime; recreation; diversion
じゃあ、遊びも兼ねて少し運動をしようか。Well then, shall we get a little exercise and have some fun at the same time?
3. play (in a mechanism, e.g. a steering wheel); slack
4. flexibility (in a performance, art, etc.); freedom
デザインに少し遊びがあってもいい。It's fine for a design to have a little playfulness.
5. flyleaf