verb · to know, recognize, or be acquainted with

我与他虽有一面之交，却不识其人。

idiom, verb · to be able to recognize the value or good intentions of someone or something (often used in negative forms)

你这孩子怎么不识好歹？

noun · to write a footnote, inscription, or postscript on a document or work of art

他在书页的空白处加了简短的题识。

noun · to record, remember, or mark down information

博闻强识是一个学者的基本素质。

idiom · knowledge, insight, or understanding

他是一个非常有胆有识的领导者。