1. Not required by rule or law
   - nonmandatory

See also: optional

• ramification
• ramify
• ramipril
• ramjet
• ramjet engine
• Ramman
• rammer
• Ramon Lully
• Ramon y Cajal
• ramona
• ramontchi
• ramose
• ramous
• ramp
• ramp up
• rampage
• rampageous
• rampancy
• rampant
• rampant arch
• rampantly
• rampart
• Ramphastidae
• Ramphomicron
• rampion