1. Large in number or quantity (especially of discourse)
   "she took copious notes"
   - voluminous 
2. Affording an abundant supply
   "copious provisions"
   - ample, plenteous, plentiful, rich

See also: abundant, copiously, copiousness

• rehearing
• rehearsal
• rehearse
• reheat
• reheel
• rehire
• Rehnquist
• rehouse
• rehydrate
• Reich
• Reichstag
• Reichstein
• Reid
• reification
• reify
• reign
• Reign of Terror
• reigning
• reignite
• reiki
• reimbursable
• reimburse
• reimbursement
• reimport
• reimpose