This is the 15891st most frequent Russian word.
пропагандиста
Propagandist.
In this sentence, 'пропагандиста' is used in its accusative singular form as the direct object of the verb 'арестовали' (arrested), signifying a person actively involved in propaganda activities.
Пропагандиста арестовали за распространение ложной информации.
The propagandist was arrested for spreading false information.
Here, 'пропагандиста' also appears in its accusative singular form as the direct object of the verb 'видел' (saw), denoting a person associated with the act of distributing propaganda materials.
Я видел пропагандиста на площади, раздающего листовки.
I saw the propagandist in the square giving out leaflets.
In this case, 'пропагандиста' functions as a genitive singular form to indicate possession or association, describing the work that relates to or is conducted by the propagandist.