1. fast; quick; rapid; swift; speedy; brisk; prompt
esp. 速い
とにかく早くしてくれ!Just hurry up!
2. early; soon; earlier than usual
あら、二人とも今日は早いのね。Oh, you're both early today.
3. premature; too soon; too early
お嬢ちゃんにはまだ早い。It's still too early for you, little lady.
4. easy; simple; quick; fast
esp. 早い
5. as soon as ...; the moment ...; the instant ...
as ...するが早いか or ...するより早く