piano keys

فِي ٱللُّغَةِ ٱلْإِنْجْلِيزِيَّةِ:

اسم

piano keys

1. صِيغَةُ جَمْعٍ مُفْرَدُهَا piano key
2. (aviation, slang) The large white striped section at the ends of a runway, used as a landing aiming point and as a distance indicator.