Whisper is similar to Say in that it sends a message within the room. However, this message is only sent to one target, as opposed to everyone in the room. Nevertheless, all within the room can still see who is whispering to whom, if not what is said.
In Game Description
Syntax: whisper <person> <message> Whisper is used to tell something to someone in the same room without anyone else hearing what you say. Example: > whisper Egwene Ok, when I say go you fireball the trolloc