1. A colourful ornamental carp
   - koi

Derived forms: koi carp

• cogitable
• cogitate
• cogitation
• cogitative
• Cognac
• cognate
• cognate word
• cognation
• cognisable
• cognisance
• cognisant
• cognise
• cognition
• cognitive
• cognitive content
• cognitive factor
• cognitive neuroscience
• cognitive neuroscientist
• cognitive operation
• cognitive process
• cognitive psychology
• cognitive science
• cognitive scientist
• cognitive semantics
• cognitive state