1. Exhausted as a result of longtime stress
   "she was burned-out before she was 30"
   - burnt-out 
2. Inoperative as a result of heat or friction
   "a burned-out picture tube"
   - burnt-out 
3. Destroyed or badly damaged by fire
   - burned, burnt, burned-over, burnt-out

See also: destroyed, tired, unserviceable

• class Bacillariophyceae
• class Basidiomycetes
• class Bivalvia
• class Bryopsida
• class Cephalopoda
• class Cestoda
• class Channidae
• class Charophyceae
• class Chilopoda
• class Chlorophyceae
• class Chondrichthyes
• class Chrysophyceae
• class Chytridiomycetes
• class Ciliata
• class Ciliophora
• class Coniferopsida
• class Crinoidea
• class Crustacea
• class Cryptophyceae
• class Cyanobacteria
• class Cyanophyceae
• class Cycadopsida
• class Cyclosporeae
• class Deuteromycetes
• class Diatomophyceae