This is the 486th most frequent Czech word.
babiše
"Babiše" is the genitive form of "Babiš," referring to Andrej Babiš, a Czech politician and businessman.
In this usage, 'babiše' is used in the genitive case, indicating possession (Babiš's politics).
Včera v televizi analyzovali politiku babiše.
Yesterday on TV, they analyzed Babiš's politics.
Here, 'babišem' is in the instrumental case, expressing 'by Babiš' as the doer of the action for 'navržených' (proposed).
Uvažovali jsme o reformách navržených babišem.
We considered the reforms proposed by Babiš.
Here, 'babiše' refers to the proper noun, a name (Babiš), in the accusative singular case, used as the direct object of the verb 'viděl' (saw).