What is the meaning of Write_down?

Used other than figuratively or idiomatically: see write, down.

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

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

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

To condemn in writing; to document the faults, offenses, or wrongdoing of.

Source: wiktionary.org