Start with 'th' by placing your tongue between your teeth and blowing air out.
Follow with 'ʌ', a short vowel sound made with your mouth open and tongue relaxed.
End with 'dər', where the 'd' is a voiced sound with the tongue tip tapping the roof of the mouth and 'ər' as a relaxed sound.
thon-der
tan-der
fan-der
Start with 'th' by placing your tongue between your teeth and blowing air out.
Follow with 'ʌ', a short vowel sound made with your mouth open and tongue relaxed.
End with 'də', where the 'd' is a voiced sound with the tongue tip tapping the roof of the mouth and 'ə' as a schwa sound.
thon-der
tan-der
fan-der
It requires placing the tongue between the teeth, which might not exist in your native language.
In American English, yes. In British English, it is softer or silent.
A schwa /ə/ is a quick, relaxed, neutral vowel sound.
Loud sound after lightning during a storm.
/ˈlaɪt.nɪŋ/
Flash of light in the sky during a storm
/stɔːrm/
Severe weather with wind and rain
/ˈθʌn.dər.stɔːrm/
A storm with thunder and lightning
Th vs. L in 'lightning'
Different vowel sound and stress in 'storm'
Additional syllable in 'thunderstorm'
Use a mirror to ensure your tongue is between your teeth.
Let your mouth relax when making the schwa sound.