keynote

باللغة العربية: خِطَابٌ رَئِيسِيّ، فِكْرَةٌ رَئِيسِيَّة

1. A speech that sets the main theme of a conference or other gathering; a keynote speech or keynote address. · keynote speech· keynote speaker
2. The main theme of a speech, a written work, or a conference.
3. The note on which a musical key is based; the tonic.

الجمع keynotes