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1. The principal theme in a speech or literary work
    
2. A fundamental or central idea
    
3. (music) the first note of a diatonic scale
   - tonic

1. Set the keynote of
   "Comfort keynotes this designer's Fall collection"
    
2. Give the keynote address to (an audience)

Derived forms: keynoted, keynotes, keynoting

Type of: address, idea, musical note, note, set, speak, subject, theme, thought, tone, topic

Part of: keynote address, keynote speech

Encyclopedia: Keynote