thunder
PronouncedTHUHN-der
nounThe loud sound that comes after lightning during a storm.
verbTo make a loud, deep noise like a storm.
nounAny deep, rumbling noise that sounds like a storm sound.
verbTo say something in a loud, angry, or scary voice.
Syllables
2 syllables
Letters
Phonics breakdown
Phonics Rule: TH Digraph (Unvoiced)
Sound“th”·/θ/
TH can make a soft sound “th”, like in 'think' and 'bath'. Just air, no buzz!
The unvoiced TH “th” is the quiet, breathy version. Your throat doesn't vibrate. Stick your tongue between your teeth and blow air.
Tip
Unvoiced TH is quiet — think with three teeth!
Examples
When the letter U appears in a closed syllable, it usually makes the short U sound “uh”. This sounds like 'uh'.
Tip
U says “uh” like 'uh-oh, what's up?'
Examples
Phonics Rule: ND End Blend
Sound“nd”·/nd/
ND at the end of a syllable blends /n/ and /d/ together, like in 'hand', 'sand', and 'send'.
ND is a common end blend (coda blend). The nasal /n/ and voiced stop /d/ are both heard. It appears very frequently in English words.
Tip
ND ends with a d-d-d — hand, sand, send!
Examples
Phonics Rule: Suffix -ER
Sound“er”·/ɜːr/
Adding -ER can mean 'more' (bigger) or 'a person who' (teacher).
The suffix -er has two main uses: comparative ('big' → 'bigger' = more big) and agent ('teach' → 'teacher' = a person who teaches).
Examples
What is SnapPhonics?
A phonics reference for teachers, parents and learners. Every English word, broken into the sounds that make it — with audio, syllables, and the rule behind each spelling.
Save words to study lists, build flashcard decks, and scan your own worksheets and books.