eszközkifejezésre
Eszközkifejezésre is a Hungarian term that translates to "tool expression" or "instrumental expression." It refers to the use of a noun, pronoun, or adjective in the instrumental case to indicate the instrument, means, or agent by which an action is performed. This grammatical case is marked by the suffix -vel/-val or -lyel/-lyal, depending on vowel harmony and the preceding sound.
For example, in the sentence "A késsel vágtam a kenyeret" (I cut the bread with the knife),
The instrumental case can also express the agent of a passive verb or a state of being.