supermassive
Extremely large and heavy, like the biggest black holes in space.
Syllables
4 syllables
Letters
Related words (same phonics pattern)
Phonics breakdown
Phonics Rule: Letter S
The letter S usually makes the /s/ sound, like in 'sun', 'sit', and 'sock'. Air hisses through a small gap.
S is a voiceless alveolar fricative when it makes the /s/ sound. At the end of many words it can also make a /z/ sound (as in 'dogs' or 'has'). At the start of a word it is always /s/.
Tip
S hisses like a snake — sssssun!
Examples
Phonics Rule: Open Syllable U — /uː/ (Long U)
In an open syllable, when U follows L, R, S, or J it says 'oo' instead of 'yoo' — like in 'su-per' and 'tru-ly'.
Same open-syllable pattern as the companion Open Syllable U (/juː/) rule, but when the lone U follows L, R, S, or J it drops the Y-glide and says pure /uː/ (su-per, ru-by, tru-ly). Same letter, different sound depending on what comes before it.
Tip
After L, R, S, J — U says oo, not yoo!
Examples
Phonics Rule: Letter P
The letter P makes the /p/ sound, like in 'pan', 'pig', and 'pot'. Both lips press together then pop open.
P is a voiceless bilabial stop — both lips press together and release with a puff of air but no voice. It pairs with B (which is the voiced version of the same mouth position).
Tip
P pops open — press your lips and let it POP!
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: Letter M
The letter M makes the /m/ sound, like in 'map', 'mud', and 'mop'. Both lips press together with voice through the nose.
M is a voiced bilabial nasal — both lips press together while the voice hums through the nose. Double M (mm) makes the same /m/ sound.
Tip
M hums like mmm — press your lips and hum!
Examples
Phonics Rule: Short A
The letter A makes a short sound, like in 'cat' and 'bat'.
When the letter A appears in a closed syllable (a syllable that ends with a consonant), it usually makes the short A sound /æ/. This is one of the first vowel sounds students learn.
Tip
A says /æ/ like a cat that sat on a mat.
Examples
Phonics Rule: Double Consonant
Two of the same consonant together make just one sound, like the LL in 'ball' or TT in 'butter'.
When two identical consonants appear together, they make just one consonant sound, and the doubling signals a short vowel before it. A common case is the FLOSS rule: a one-syllable word with a short vowel doubles a final f, l, s, or z (off, ball, miss, buzz). Examples: ball, butter, happy, mitten, egg, off.
Tip
Double consonants make one sound — ball, butter, egg!
Examples
Phonics Rule: Silent E with I (Magic E)
In the i-consonant-e pattern, the E at the end is silent and makes the I say its name — like in 'bike' and 'time'. Teachers often call this the Magic E.
In the pattern i-consonant-e (like 'bike'), the final E is silent but makes the I say its long sound /aɪ/.
Tip
Magic E makes I say its name!
Examples
Phonics Rule: Letter V
The letter V makes the /v/ sound, like in 'van', 'vet', and 'vine'. Upper teeth touch the lower lip with voice.
V is a voiced labiodental fricative — the upper front teeth rest on the lower lip while air and voice flow through. It is the voiced partner of F. English words rarely end in V; they usually add an E (have, live, give).
Tip
V is for van — /v/ vibrates your lips!
Examples
Phonics Rule: Silent E with I (Magic E)
In the i-consonant-e pattern, the E at the end is silent and makes the I say its name — like in 'bike' and 'time'. Teachers often call this the Magic E.
In the pattern i-consonant-e (like 'bike'), the final E is silent but makes the I say its long sound /aɪ/.
Tip
Magic E makes I say its name!
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.