What does ch mean?
"Ch" is not a word in its own right but one of the most familiar digraphs in English orthography: two letters that combine to represent a single sound. Its most common value is the voiceless affricate /tʃ/, heard at the start of everyday words like "chair," "child," and "church." Because English has borrowed heavily from other languages, however, "ch" behaves unpredictably across the vocabulary. Words taken from Greek, often via Latin, preserve a hard /k/ sound, as in "chorus," "chemistry," and "character." Words borrowed from modern French frequently carry the /ʃ/ sound instead, as in "chef," "champagne," and "chic." This variety makes "ch" a staple of phonics instruction and a frequent source of spelling confusion for learners. Understanding it means recognizing that its pronunciation is a clue to a word's origin rather than something governed by any simple rule.
noun"Ch" is not an independent English word but a digraph — a pair of letters that together represent a single sound. In native English words it most commonly represents the affricate /tʃ/ (as in "church"), though it can also represent /k/ in words of Greek origin (as in "chorus") and /ʃ/ in French loanwords (as in "chic").
- A digraph consisting of the letters c and h, representing various sounds depending on a word's language of origin.
"The digraph "ch" appears at the start of "chair," where it makes its familiar /tʃ/ sound."
"In phonics lessons, children learn early on that "ch" usually makes the sound heard at the start of "chat.""
"Words borrowed from Greek keep the older pronunciation, so the "ch" in "psychology" is silent."
One little pair of letters, three completely different sounds: "ch" says /tʃ/ in "church," /k/ in "chorus," and /ʃ/ in "chef" — all depending on which language lent us the word.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ch
As a written combination, "ch" entered English through Latin, which had adopted the Greek letter pair chi (Χ) to transcribe Greek words; this is why classical borrowings like "chorus" and "chaos" retain the /k/ pronunciation. The /tʃ/ sound associated with native English words such as "child" developed from Old English palatalization of earlier /k/. Later borrowings from French introduced the /ʃ/ pronunciation found in words like "machine." The letters themselves are simply c plus h, with no independent etymology beyond their alphabetic origins.
Usage notes
Because "ch" has no meaning as a standalone word, it is discussed only in linguistic and educational contexts such as spelling, phonics, and orthography.
Don't confuse with
"Sh" is a different digraph representing the /ʃ/ sound, as in "ship," whereas "ch" typically represents /tʃ/, as in "chip."