'd better

abbreviation alt-of auxiliary contraction modal

(modal, auxiliary verb) Contraction of had better.

Japanese Meaning

〜した方がよい（助言・忠告を表す） / ～すべきである（直截的な勧告の表現）

You'd better check the weather before you leave for the hike.

ハイキングに出かける前に、天気を確認したほうがいいよ。

Sense（1）

(modal, auxiliary verb) Contraction of had better.

You'd better slow down. The police are behind us.