Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ“Janko”
We have one entry that includes the term Janko.
Janko keyboard
noun: a pianoforte keyboard invented in 1882 consisting of six rows of keys with three digitals to each note, those of each row being as whole-step intervals
Love words? Need even more definitions?
Merriam-Webster unabridged





