verb, adverb · to acknowledge or pay attention to someone

她还在生气，不肯理我。

verb, noun · to manage, handle, or put affairs in order

他吃完午饭就开始在家理东西。

noun, punctuation · reason, truth, or the intrinsic order and essence of things

你说的话很有道理。

noun · the grain or texture of materials such as wood or stone

这种大理石的理非常均匀、美观。

verb · to manage, handle, or deal with tasks, affairs, or documents; often used in compounds or formal contexts

别吵我，我正在理这团乱糟糟的毛线。

noun · natural science, specifically fields like physics

这所高中的课程分为文、理两类。