particle, modal particle, preposition, numeral, noun, adjective, verb, place word, directional, punctuation, adverb, descriptive, place name, pronoun, measure word, time word · aspect marker used after a verb to indicate the completion of an action

昨天的作业我已经做完了。

modal particle, particle, numeral, noun, punctuation, verb, measure word, adjective, time word, pronoun, adverb, directional, preposition, place name, place word, suffix · sentence-final particle indicating a new situation or a change in circumstances

天已经黑了，我们回家吧。

modal particle, particle, verb, adverb, adjective, pronoun, punctuation, noun · modal particle used to intensify the preceding clause, often in exclamatory structures

这个主意真是太妙了！

verb, modal particle, punctuation, particle, measure word, pronoun · used after a verb with 得 de or 不 bù to express possibility or ability

这个任务我完成不了。

modal particle · to finish, conclude, or settle

我们的账还没了呢。

verb · (literary) used with a negative to mean completely, entirely, or not in the least

他对此事了无兴趣。

particle · to understand clearly or comprehend

听了你的解释，我才明了真相。

verb · (of eyes) bright or clear-sighted

他的双目明了，透着一股聪慧。

particle, idiom · to understand clearly or comprehend

他的说明非常简洁，让人听后对整个计划一目了然。