contralto /kən-tralˈtō or -trälˈ/

1. The lowest musical voice in women
2. A singer with such a voice
3. A part for such a voice

Of or suitable for a contralto

• birdwatching
• birdwing
• birdwing butterflies
• birdwing butterfly
• birdwings
• bird-witted
• birefringence
• birefringences
• birefringent
• bireme
• biremes
• biretta
• birettas
• biriani
• birianis
• biriyani
• biriyanis
• birk
• birken
• birkie
• birkier
• birkies
• birkiest
• birks
• birl