Definition
In the communication process, the source of a message — the person who encodes an idea into words, tone, and delivery and transmits it to a listener with the intent of producing understanding.
Plain English
The person doing the talking. In any exchange of information, the speaker is the one sending the message; the listener is the one receiving it.
Context Anchor
Seen in discussions of instructor-student communication, briefings, radio communication, and cockpit conversations.
Derivation
Speaker comes from speak, from Old English words meaning “to talk” or “to say something.” That helps here because the aviation communication meaning is about the person producing the spoken message, not an audio device.
Why Pilots Care
Effective instruction depends on the speaker — usually the instructor — choosing words, tone, and delivery that the listener can actually decode. A speaker who uses unfamiliar terms, talks too fast, or misjudges the listener's background will fail to transfer understanding, no matter how accurate the content is.
Intuition Check
Do not read speaker here as the audio device in an aircraft panel. In this communication context, the speaker is the person sending the spoken message.
Example Sentence 1
As the speaker during a preflight briefing, the instructor must adjust vocabulary to match the student's experience level.
Example Sentence 2
During a radio call, the pilot acts as the speaker to report position and intentions to air traffic control.