This is the 331st most frequent Slovak word.
šéfa
The Slovak word "šéfa" means "boss" in English (in the accusative case).
The word 'šéfa' is in its accusative case form here, denoting the direct object of the action 'I saw'.
Videl som šéfa v kancelárii.
I saw the boss in the office.
The word 'šéfom' (not 'šéfa' here) is in its instrumental case form, denoting the means or accompaniment of the action 'I talked'.
Rozprával som sa s šéfom o novom projekte.
I talked with the boss about the new project.
The word 'šéfa' appears in the genitive case here, expressing possession or relation to the 'approval'.