This is the 463rd most frequent Estonian word.
pandud
"Pandud" means "placed" or "put" in English.
Here, 'pandud' describes the correct or appropriate placement or establishment of rules, used as a qualifying attribute for 'rules'.
Õigesti pandud reeglid lihtsustavad koostööd.
Properly set rules facilitate cooperation.
'Pandud' is used in the passive past participle form to describe a completed action in the past regarding placing.
Raamat oli lauale pandud.
The book was placed on the table.
In this context, 'pandud' indicates that the action of inclusion was completed in the past, serving as part of the past participle.