1. Any notation that uses 16 different characters
   - hexadecimal notation

Type of: mathematical notation

• Haggai
• haggard
• haggardly
• haggis
• haggish
• haggle
• haggler
• haggling
• Hagia Sofia
• Hagia Sophia
• Hagiographa
• hagiographer
• hagiographic
• hagiographist
• hagiography
• hagiolatry
• hagiologist
• hagiology
• hagridden
• hah
• Hahn
• hahnium
• haick
• Haida
• Haifa