〜くらい／ぐらい (kurai/gurai) indicates the degree or extent of something, or an approximate amount/quantity. It can be used for comparison, to express a minimum degree, or simply to give an estimation. It connects to verbs, adjectives, and nouns. Example: 疲れて、立つこともできないくらいだ。(I'm so tired, to the extent that I can't even stand up.)

程度や量のおおよそ、または程度がどのくらいかを表現します。例：子どもでもわかるくらい簡単だ。