CH Digraph Words

What Is the CH Digraph?

A digraph is a pair of letters that work together as one spelling unit, standing for a single sound rather than two. In CH, neither letter keeps the sound it usually spells: C’s usual /k/ and H’s usual breathy sound are both set aside, and the two letters together spell one sound — the one heard at the start of chin, chip, and chop, and at the end of lunch, much, and rich. Say chin slowly and notice there’s no separate “k” sound or “h” sound hiding inside it — just one sound, made once, right at the start.

A Stop, Then a Release — Not a Blend

It helps to notice how CH actually behaves in the mouth: it starts with a very brief stopping of air, similar to the start of a quiet “t,” then releases into a soft, hushing sound. That two-part shape — stop, then release — is part of why CH can feel a little trickier to isolate than a smoother digraph like SH, which flows evenly from start to finish with no stop at all.

This is also what separates CH from a true consonant blend. In a blend like the bl in black or the st in stop, both letters keep their own individual sounds — slow the word down and you can still hear the b and the l separately. CH is different: C and H together spell one sound that can’t be split into two. A useful test for a learner (or the adult helping them) is simply to ask: do I still hear both letters, or just one sound?

Where CH Shows Up

CH is most common at the very beginning and the very end of short words:

Position	Example words
Beginning	chin, chip, chop, chest
End	lunch, much, rich, such

Hearing the same sound at the start of chin and the end of much helps a learner treat CH as one dependable, portable unit — not a pattern that only counts when it happens to open a word.

CH does appear inside longer words too, as in teacher and orchard. It’s worth knowing that right after a short vowel in the middle or end of a word, this same sound is usually spelled tch instead — as in kitchen and catch — which is a separate spelling pattern covered on its own page, CK, Double Letters, and TCH/DGE Word Endings. Naming that briefly keeps a learner from expecting CH everywhere they hear the sound.

CH Compared With SH

CH’s closest neighbor is SH — both are made near the front of the mouth, and both can sound similar to an early speller’s ear. The real difference is the stop: CH starts with that brief “t”-like catch before finishing like SH, while SH is smooth the whole way through. Saying matched pairs side by side is usually the fastest way to hear it:

CH	SH
chip	ship
chop	shop
chin	shin
much	mush

Reading a row aloud and holding the first sound a beat longer — “ch… ip” versus “sh… ip” — makes the stop-versus-smooth difference easier to feel than to describe.

Common CH Mistakes

Beyond mixing up CH and SH, the next most common slip is spelling only the /k/ or only a plain hissing sound for a word that actually needs the full CH sound — writing cin or shin for chin, for instance. The stretch-and-listen habit below, treating CH as one unit before writing anything, usually clears this up quickly.

A smaller, genuinely interesting quirk worth naming only if it comes up: in fast, casual speech, the letters tr can start to sound a little like CH — truck can come out sounding almost like “chruck.” That’s a pronunciation habit of quick speech, not a spelling rule, and the word is still spelled with tr. It’s worth mentioning if a learner’s spelling attempts show this particular mix-up, but not worth teaching ahead of time.

How to Practice CH Words

1. Say the target word aloud.
2. Stretch it into its sounds together, treating CH as one sound rather than two letters (ch… i… n).
3. Write or type the letters for each sound, in order.
4. Read the result back exactly as written.

If a word comes out wrong, step 4 is the key one: read back exactly what was written — “that says shin” — and let the learner listen for which sound needs to change, rather than pointing to the correct letters directly. Hearing the mismatch themselves is what builds the skill; being handed the answer skips it.

Signs the CH Pattern Is Becoming Secure

Signs the pattern is becoming secure include:

• Hearing CH as one sound in a new, unfamiliar word, at any position in the word.
• Telling CH apart from its nearest neighbor, SH.
• Reading a CH word not seen before.
• Spelling a representative CH word from dictation.
• Explaining, in their own words, why CH is one sound rather than the two separate sounds of C and H.