devocalize or devocalise /dē-vōˈkə-līz/ or devoice /dē-voisˈ/

To make voiceless

• bilateral
• bilateralism
• bilateralisms
• bilaterally
• bilateral symmetry
• bilberries
• bilberry
• bilbies
• bilbo
• bilboes
• bilbos
• bilby
• Bildungsroman
• bile
• bile ducts
• biles
• bi-level
• bi-levels
• bilge
• bilged
• bilge keel
• bilge keels
• bilge-pump
• bilge-pumps
• bilges