一言以蔽之
yī​yán​yǐ​bì​zhī

to sum up in a word

  1. 一言 yī​yán noun
    one word
    a single word, a brief remark, or one sentence
  2. 以 yǐ preposition
    by means of
    to use; by means of; with; using the tool or method introduced
  3. 蔽 bì
    to summarize
    (literary) to summarize or wrap up in a single phrase
  4. 之 zhī pronoun
    it
    Used only in the object position to refer to a person or thing already mentioned, meaning "him", "her", "it", or "them".