cornerstone
nounSomething that is the most important part of something else, on which everything else depends.
nounA stone placed at the corner of a building to mark its start or importance.
nounA special stone placed at a building's corner as part of a ceremony, often with writing carved into it.
Syllables
3 syllables
Letters
Phonics breakdown
Phonics Rule: Hard C
C makes the /k/ sound before A, O, U, or a consonant, like in 'cat' and 'cup'.
The letter C makes the hard /k/ sound when followed by A, O, U, or a consonant. This is the default C sound. Examples: cat, cup, coat, cold, crab, class.
Tip
C says K before A, O, U — cat, cup, coat!
Examples
Phonics Rule: R-Controlled OR
When R comes after O, it makes the /ɔːr/ sound, like in 'for' and 'corn'.
OR makes the /ɔːr/ sound. Unlike ER/IR/UR which all sound the same, OR has its own distinct sound. The companion rule r_controlled_or_er covers the /ɜːr/ pronunciation after W (word, work).
Tip
OR — the horse in the corner says /ɔːr/!
Examples
Phonics Rule: Letter N
The letter N makes the /n/ sound, like in 'net', 'nap', and 'nut'. The tongue tip touches behind the upper teeth.
N is a voiced alveolar nasal — the tongue tip touches the ridge behind the upper teeth while voice hums through the nose. It is one of the most common consonants in English.
Tip
N hums through the nose — say /n/ and feel the buzz!
Examples
Phonics Rule: R-Controlled ER
When R comes after E, it makes the /ɜːr/ sound, like in 'her' and 'fern'.
ER makes the same sound as IR and UR — they all say /ɜːr/. ER is the most common spelling of this sound, especially at the end of words.
Tip
ER, IR, and UR all sound the same — Bossy R wins again!
Examples
Phonics Rule: ST Blend
S and T blend together — you hear both sounds! Like in 'stop' and 'fast'.
The blend ST combines /s/ and /t/ spoken quickly together. It can appear at the beginning or end of a word.
Examples
Phonics Rule: Silent E with O (Magic E)
In the o-consonant-e pattern, the E at the end is silent and makes the O say its name — like in 'home' and 'bone'. Teachers often call this the Magic E.
In the pattern o-consonant-e (like 'home'), the final E is silent but makes the O say its long sound /oʊ/.
Tip
Magic E makes O say its name!
Examples
Phonics Rule: Letter N
The letter N makes the /n/ sound, like in 'net', 'nap', and 'nut'. The tongue tip touches behind the upper teeth.
N is a voiced alveolar nasal — the tongue tip touches the ridge behind the upper teeth while voice hums through the nose. It is one of the most common consonants in English.
Tip
N hums through the nose — say /n/ and feel the buzz!
Examples
Phonics Rule: Silent E with O (Magic E)
In the o-consonant-e pattern, the E at the end is silent and makes the O say its name — like in 'home' and 'bone'. Teachers often call this the Magic E.
In the pattern o-consonant-e (like 'home'), the final E is silent but makes the O say its long sound /oʊ/.
Tip
Magic E makes O say its name!
Examples
What is SnapPhonics?
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