trigraph
Three-letter cluster
A trigraph is a group of three letters representing a single sound.
In English, "tch" represents the sound at the end of catch, and "igh" represents the long i in night.
The term appears in discussions of spelling and phonics.
Compare digraph, which uses two letters.
Minimal written symbol unit
- alphabetLanguage's letter system
- scriptWritten words for performance
- tchCluck of disapproval
- transliterationCross-script phonetic spelling
Minimal distinctive sound unit
- consonantIn agreement with
- vowelUnobstructed speech sound
- articulationClear vocal expression
- pronunciationManner of speaking words
allophone · speech sound · phonological · voicing · aspiration · affricate · fricative · nasal
Hidden writing system
- encryptionConverting data into code
- codeSymbolic communication system
- codebreakingSolving secret communications
- EnigmaGerman encryption apparatus
substitution · cryptanalysis · plaintext · ciphertext · key · decryption · transmission · naval code
grapheme
Minimal written symbol unit
phoneme
Minimal distinctive sound unit
- consonantIn agreement with
- vowelUnobstructed speech sound
- articulationClear vocal expression
pronunciation · allophone · speech sound · phonological · voicing · aspiration · affricate · fricative · nasal · diphthong
cipher
Hidden writing system
- encryptionConverting data into code
- codeSymbolic communication system
- codebreakingSolving secret communications
Enigma · substitution · cryptanalysis · plaintext · ciphertext · key · decryption · transmission · naval code · intelligence
- lettersa, d, e, h, q
- spellingspelling, spelling rules, spelling patterns, spelling errors, spelling conventions
- letter combossh, th, ph, oo, ow
- word partsroot, stem, base, prefix, suffix
- spelling reformspelling reform, spelling rules, phonetic spelling, respelling, Noah Webster
- text analysistext analysis, bigram, tokenization, writing style, word frequency