This is the 958th most frequent Czech word.
partnera
The Czech word "partnera" means "partner" (referring to a male partner in the accusative case).
Here, 'partnera' is the object of the sentence, understood as a life companion in the accusative case after 'hledám'.
Hledám partnera na život.
I am looking for a partner for life.
Here, 'partnerem' is in instrumental case, expressing accompaniment during an action.
S partnerem jsme byli na dovolené.
With my partner, we were on vacation.
Here, 'partnera' is in the accusative case, object of the preposition 'o'.