遊(あそ)び

あそび
noun
play; game; amusement
leisure
1. play, playing, game
The activity of playing, especially for children.
子供(こども)の遊(あそ)び
Children's play
I like playing outdoors.
The children are absorbed in play.
2. amusement, fun, recreation
Activities done for enjoyment rather than work.
遊(あそ)びに来(き)てください。
Please come over to hang out.
Common invitation
The balance between work and play is important.
I often go out with friends for fun on weekends.
3. slack, play (mechanical)
A small amount of looseness in a mechanism.
ハンドルに遊(あそ)びがある。
There's play in the steering wheel.
Mechanical slack
There's too much play in the brakes.
It's better to have a little slack in this screw.

遊(あそ)び is a noun derived from the verb 遊(あそ)ぶ. It covers a wide range from children's play to adult recreation, and even mechanical slack.

Common expressions

USAGE (mechanical):
In engineering contexts, 遊(あそ)び means "play" or "slack" — the looseness in a mechanism like a steering wheel or brake. ハンドルに遊(あそ)びがある (There's play in the steering wheel).

Usage

In some contexts, 遊(あそ)び can imply frivolity or not taking things seriously: 遊(あそ)びじゃない (This isn't a game).
遊(あそ)びに行(い)く/来(く)る is one of the most common casual expressions in Japanese. It means "to go/come visit" or "to go/come hang out" — much broader than English "play." Adults use it freely for casual socializing.

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