tevékenységével

tevékenységével is a Hungarian instrumental form of the noun tevékenység (activity). It expresses the means, manner, or agent by which an action occurs, roughly corresponding to “with its activity” or “through its activities” in English. The form is created from tevékenység plus the instrumental suffix -vel/-val, with a linking vowel (e) inserted to ease pronunciation, yielding tevékenységével.

In usage, tevékenységével appears in formal or descriptive prose to indicate that an outcome is achieved or understood through the activities of a subject. It can denote agency or influence, for example: A vállalat tevékenységével növelte bevételeit (The company, through its activity, increased its revenues). A szervezet tevékenységével jutottak el a rászorulókhoz (Through its activities, the organization reached the needy). Such constructions emphasize the role of ongoing actions rather than a single event.

Linguistic notes: tevékenység is derived from tevékenykedik (to act) and the noun-forming suffix -ség. The instrumental suffix -vel/-vel attaches to nouns to express means, and in words ending with a consonant cluster like tevékenység, a linking vowel is added, producing tevékenységével. The form behaves like other instrumental forms in Hungarian syntax and inflection, and its use is typical in analytic or explanatory contexts.