Write up and Write down

Write up verb - Bring to public notice by writing, with praise or condemnation.

Write down and write up are semantically related in put language down on paper topic. In some cases you can use "Write down" instead a verb "Write up".

Write down verb - To diminish the price or value of.

Write up and write down are semantically related in put language down on paper topic. Sometimes you can use "Write up" instead a verb "Write down".