1. Memorable for being a special occasion
   "on red-letter nights a large gathering greeted the celebrity"

See also: unforgettable

• divisibility
• divisible
• division
• division Anthophyta
• division Archaebacteria
• division Bryophyta
• division Chlorophyta
• division Chrysophyta
• division Cyanophyta
• division Cynodontia
• division Dicynodontia
• division Eubacteria
• division Euglenophyta
• division Eumycota
• division Gymnomycota
• division Gymnospermophyta
• division Heterokontophyta
• division Lichenes
• division Magnoliophyta
• division Myxomycota
• division Phaeophyta
• division Protista
• division Pteridophyta
• division Rhodophyta
• division Schizophyta