This is the 15081st most frequent Russian word.
поймают
"Поймают" means "they will catch" in English.
'поймают' is used in a future tense context indicating that someone will be caught.
Если они продолжат нарушать законы, их поймают.
If they continue to break the law, they will get caught.
'поймают' here indicates a hypothetical future condition implying that the parents might catch them.
Дети играли у реки, пока родители их не поймают.
The children played by the river until their parents would catch them.
'поймают' symbolizes achieving grasp over something, in this case, success in a metaphoric sense.