1. Any notation that uses 12 different characters

Type of: mathematical notation

• bebop
• becalm
• becalmed
• because
• bechance
• becharm
• Bechtel crab
• Bechuana
• beck
• Becker muscular dystrophy
• becket
• becket bend
• Beckett
• Beckley
• Beckman thermometer
• beckon
• becloud
• become
• become flat
• becoming
• becomingly
• becomingness
• Becquerel
• bed
• bed check