Organizer: someone in the meeting who is able to send and receive audio and video. This person is the ‘owner’ of the meeting who is logged into their account and their account is being used to host the meeting.

Moderator: someone in the meeting who is able to send and receive audio and video and participate fully in the meeting by sharing their screen and etc. This person also has moderator privileges.

Participant/Panelist: someone in a meeting who is able to send and receive audio and video and participate in the meeting by sharing their screen and etc. (please refer to the meeting modes section). This person does not have moderator privileges. 

Attendee: A viewer of a webinar or live stream who is only able to receive audio and video. This person can not send any audio or video and therefore has no microphone or camera controls. Attendees can use the chat (if it is enabled) and can respond to a poll (if that is enabled).

Note: It is not currently possible to change the status of a webinar or livestream 'Attendee' to become a 'participant' or 'moderator'. A webinar or livestream attendee is only able to recieve audio and video (see and hear the meeting), they are not able to enable their microphone or webcam to be able to be seen and/or heard in the meeting.