Word choice in reporting is essential because

The right choice of words in reports is important, because only words pave the way to the imagination and are therefore indispensable for communication. The correct choice of words also means depicting reality and not the representation of a false fact by using wrong words.

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.