The host is the person who has scheduled the meeting and has control over all functions and features of the meeting. A meeting can be scheduled by another person on your behalf if you’ve set them as a delegate, and you will still be the host of that meeting. 
 
As the meeting host, you can:
Hosts can access the following in-meeting controls:
  • Participants: Tap Participants via the bottom menu bar to manage meeting attendees, and then tap the three-dot More icon at the topmost right to access host controls. Tap the three-dot More icon on the right of the attendee name to manage individual attendees.
  • End: Tap Leave the meeting or End meeting for everyone. Tap Cancel to continue meeting. 
Note: When breakout rooms are created, hosts have the following controls:
  • Main meetingLeave meeting, End meeting for everyone or Cancel.
  • Breakout room: Leave meeting, Return to main meeting, or Cancel.