write down

/R AY1 T D AW1 N/
verb
  1. 1

    To set (something) down in writing; to record something.

  2. 2

    To write (something) in a simple or condescending style.

  3. 3

    To make a downward adjustment in the value of an asset.

  4. 4

    To condemn in writing.

Source: https://en.wiktionary.org/wiki/write%20down