write down

Short definition from Wiktionary

Verb

1. 1
   Used other than figuratively or idiomatically: see write, down.
2. 2
   To produce or set (something) down in writing; to record something.
3. 3
   To write (something) in a simple or condescending style.
4. 4
   To make a downward adjustment in the value of an asset.
5. 5
   To condemn in writing; to document the faults, offenses, or wrongdoing of.

Noun

1. 1
   Alternative form of writedown.