1. Preceding and preparing for something
   - preparatory, propaedeutic

See also: preceding, prepare

• subtile
• subtilin
• subtilise
• subtilize
• subtitle
• subtle
• subtleness
• subtlety
• subtly
• subtonic
• subtopia
• subtotal
• subtract
• subtracter
• subtraction
• subtractive
• subtrahend
• subtreasury
• subtropic
• subtropical
• subtropics
• subtype
• Subularia
• Subularia aquatica
• subulate