hardness
nounThe quality of being firm and solid, not soft or easy to bend.
nounHow much a material resists being scratched, cut, or dented.
nounThe amount of minerals like calcium dissolved in water.
Syllables
2 syllables
Letters
Related words (same phonics pattern)
Phonics breakdown
Phonics Rule: Letter H
The letter H makes the /h/ sound, like in 'hat', 'hop', and 'hen'. It is a soft breath of air.
H is a voiceless glottal fricative — just a puff of air with no friction. It always appears before a vowel and is sometimes silent (as in 'hour' or 'honest').
Tip
H is a puff of air — breathe out and say /h/!
Examples
Phonics Rule: R-Controlled AR
When R comes after A, it changes the sound to /ɑːr/, like in 'car' and 'star'.
When A is followed by R, the R 'bosses' the vowel and changes its sound. Instead of short A or long A, you hear /ɑːr/. R-controlled vowels are sometimes called 'Bossy R'.
Tip
Bossy R takes the car to the farm!
Examples
Phonics Rule: Letter D
The letter D makes the /d/ sound, like in 'dog', 'day', and 'dig'. The tongue tip touches behind the upper teeth.
D is a voiced alveolar stop. The tongue tip touches the ridge just behind the upper front teeth, then releases with voice. It reliably makes the /d/ sound in almost all positions.
Tip
D is for dog — and dog starts with /d/!
Examples
Phonics Rule: Suffix -NESS
Adding -NESS turns a describing word into a thing, like 'happy' → 'happiness'.
The suffix -ness turns an adjective into a noun. It means 'the state of being [adjective]'. 'Happy' → 'happiness' = the state of being happy.
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.