cornerstone
PronouncedKOR-ners-tohn
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
Sound“k”·/k/
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
Sound“or”·/ɔːr/
When R comes after O, it makes the “or” sound, like in 'for' and 'corn'.
OR makes the “or” 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 “er” pronunciation after W (word, work).
Tip
OR — the horse in the corner says “or”!
Examples
Phonics Rule: Letter N
Sound“n”·/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
Sound“er”·/ɜːr/
When R comes after E, it makes the “er” sound, like in 'her' and 'fern'.
ER makes the same sound as IR and UR — they all say “er”. 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
Sound“st”·/st/
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)
Sound“oh”·/oʊ/
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 “oh”.
Tip
Magic E makes O say its name!
Examples
Phonics Rule: Letter N
Sound“n”·/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)
Sound“oh”·/oʊ/
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 “oh”.
Tip
Magic E makes O say its name!
Examples
What is SnapPhonics?
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