1. To catch someone or something and make them a prisoner, especially after a struggle or in a war. English = capture.
2. To reach someone who is in front of you by walking or running faster than they are walking or running. English = catch up with, catch up to.
3. To see something clearly or think about something and realise its importance and significance. English = catch, notice.
4. [Especially when the sign is repeated] of a wild animal, to capture, kill and eat other animals. English = prey on.