1. A technical system of symbols used to represent special things
   - notation

Type of: writing

• hackee
• Hackelia
• hacker
• hackle
• hackles
• hackly
• hackmatack
• hackney
• hackney carriage
• hackney coach
• hackneyed
• hacksaw
• hackwork
• had best
• had better
• Had crime
• hadal
• haddock
• hade
• Hadean
• Hadean aeon
• Hadean eon
• Hadean time
• Hades
• hadith