10 ways to ask someone to wait:
1. Hold on: used for telling someone to stop or wait
2. Just wait until/till: used for saying that someone should be patient for a moment
3. Hang on/hold on a minute: used for asking someone to wait for a short period of time, especially someone who you are talking to on the telephone
4. Wait a minute/second: used for telling someone to stop and wait for you
5. Just a minute/moment/second: used for asking someone to wait for a short time
6. Let me see/think: used for saying that you need a moment to think about something
7. Bear with me/us: used as a polite way of asking someone to be patient while you do or finish something
8. Something will have to wait: used for saying that there is no time to do something now and it will have to be done later
9. All in good time: used for telling someone to wait for something and not try to make you hurry
10. Not so fast: used when you are telling someone to wait and not be too quick to do something or believe something