- A portable device consisting of a microphone attached to a loudspeaker, used especially to amplify the voice.手提式扩音器：一种便携的由麦克风和扩音器连在一起的设备，专用来扩大声音
- northwest by north
- northwest by west
- Northwest Caucasian
- Northwest Christian College
- Northwest Christian College
- Northwest College
- Northwest College
- northwester
- northwesterly
- Northwestern Business College
- Northwestern College (Iowa)
- Northwestern College (Minnesota)
- Northwestern College (Minnesota)
- Northwestern College (Ohio)
- Northwestern Connecticut Community College
- Northwestern Michigan College
- Northwestern Oklahoma State University
- Northwestern State University of Louisiana
- Northwestern State University of Louisiana
- Northwestern University
- North-West Frontier Province
- Northwest Iowa Technical College
- Northwest Mississippi Junior College
- Northwest Missouri Community College
- Northwest Missouri State University