- noun a telephone that has a loudspeaker and microphone so that several people can listen to a conversation and speak
- A feature which enables a telephone user to place calls and participate in conversations without the need to hold the handset near the mouth. Utilized, for instance, to allow multiple persons at the same location to use the same telephone unit for a conference call. Also, a telephone equipped with this feature. Also spelled speaker phone. Also called speaker telephone.
- synonymspeaker telephone