1) telling a child to ...relax; also 'calm down' if they are upset.

2) Hurry-up, or quickly - example, hurry-up and finish, we need to go, or please do it (or move) faster

3) translate - what did you say? что or как ты сказал?

4) translate - let's have some fun

5) ся suffix - pronounced 'sah' or 'syah' I have seen both ways used in the same book!