1. An axe with two cutting blades

Derived forms: twibills

• aeroplane
• aeroplane landing
• aeroplane manoeuvre
• aeroplane mechanics
• aeroplane pilot
• aeroplane propeller
• aerosol
• aerosol bomb
• aerosol can
• aerosol container
• aerosolise
• aerosolised
• aerosolize
• aerosolized
• aerospace
• aerospace engineer
• aerospace medicine
• aerostat
• Aertex
• aery
• Aeschylean
• Aeschylus
• aeschynanthus
• Aeschynanthus radicans
• aesculapian