- 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
- irresistible
- irresistibles
- irresoluble
- irresolute
- irresolvable
- irrespective
- irrespectively of
- irrespective of
- irrespirable
- irresponsible
- irresponsive
- irretrievable
- irreverence
- irreverences
- irreverent
- irreversible
- irrevocable
- irridenta
- irrigable
- irrigatable
- irrigate
- irrigated
- irrigates
- irrigating
- irritabilities