Simple Definition of stop knob

from our Learner's Dictionary

stop knob

noun

plural stop knobs
music : any one of the handles that an organ player pushes in or pulls out to stop or allow sound from certain pipes

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“Stop knob.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/stop%20knob. Accessed 17 Jun. 2026.

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