How to Pronounce "subsonic"
word
sʌbˈsɑːnɪk
suhb-SAAN-ik
sʌbsˈɒnɪk
suhbs-ON-ik
Definition
Moving or traveling at a speed slower than the speed of sound. Usually used to describe airplanes, bullets, or objects that do not break the sound barrier.
IPA Transcription
American English
sʌbˈsɑːnɪk
British English
sʌbsˈɒnɪk
Simplified Pronunciation
US
suhb-SAAN-ik
UK
suhbs-ON-ik
Listen in Context
A subsonic plane flies slower than the speed of sound.
This bullet is subsonic, so it is quieter than normal bullets.
Most passenger jets are subsonic.
Unlike the Concorde, today's commercial planes stick to subsonic speeds for safety and cost.