knob

A knob is that thing you pull when opening a door or a cabinet. It’s usually round:

• The knob on this door is really old.
• It’s an old door knob.
• To open the door, twist the knob and pull.

• The knob on this cabinet fell off.
• I have to fix the knob.

A knob is also found on electronic devices for volume and for tuning:

• To find a radio station, you turn the tuning knob.
• To turn the volume up or down, you turn the volume knob. The volume knob on some radios turns the radio off.

• This amplifier has several different knobs.

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August 31, 2013