The word 'keen' means to be very interested in something or to have a strong desire to do something. It can also mean being sharp or quick in understanding.
You pronounce 'keen' like 'keen' rhyming with 'seen'.
The word 'keen' comes from the Old English word 'cene', which means brave or bold.
The word 'keen' in Kannada is 'ಚುರುಕಾದ' (Curukāda).