| 1. | Also called, especially British, barber's shop. the place of business of a barber. |
| 2. | the singing of four-part harmony in barbershop style or the music sung in this style. |
| 3. | specializing in the unaccompanied part-singing of popular songs in which four voices move in close, highly chromatic harmony: a barbershop quartet. |
| 4. | characteristic of such part-singing. |