watermarking
nounAdding a logo or design to a digital image or video to show who made it.
nounPutting a special hidden mark into a computer file to prove it has not been changed.
nounCreating a pattern in paper that you can only see when you hold it up to light.
Phonics breakdown
Phonics Rule: Letter W
The letter W makes the /w/ sound, like in 'win', 'wet', and 'web'. The lips round into an O shape.
W is a voiced bilabial approximant — the lips round tightly then open as voice flows. W is sometimes silent (write, wrong) and can act as a vowel in some combinations (aw, ew, ow).
Tip
W rounds your lips — make an O then say /w/!
Examples
Phonics Rule: W changes A to /ɑ/
After W, a single A often says /ɑ/ (like 'o' in 'hot') instead of short /æ/ — like in 'want' and 'wash'.
W changes the sound of A: instead of short /æ/ (cat), A after W says /ɑ/: want, wash, watch, swan, squad, squat.
Tip
W changes A — want, wash, watch!
Examples
Phonics Rule: Letter T
The letter T makes the /t/ sound, like in 'top', 'tap', and 'ten'. The tongue tip taps behind the upper teeth.
T is a voiceless alveolar stop. The tongue tip touches the ridge behind the upper teeth and releases with a puff of air. Double T (tt) makes the same /t/ sound.
Tip
T taps — touch your tongue to make /t/!
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: 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 K
The letter K makes the /k/ sound, like in 'kite', 'kit', and 'king'.
K always makes the /k/ sound. It is used before E, I, and Y where C would make an /s/ sound instead. K is silent before N at the start of a word (knife, know).
Tip
K is for kite — and kite starts with /k/!
Examples
Phonics Rule: Suffix -ING
Adding -ING to a verb shows something is happening right now, like 'running' and 'playing'.
The suffix -ing is added to verbs to show an ongoing action (present participle). Sometimes the base word changes: drop silent E ('make' → 'making'), double final consonant ('run' → 'running').
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.