From Citizendium, the Citizens' Compendium
- Linguistics : The scientific study of language.
- Phonology : In linguistics, the study of the system used to represent language, including sounds in spoken language and hand movements in sign language.
- Prosody (linguistics) : In traditional phonetics and phonology, a collective term for variables such as pitch, loudness, tempo and rhythm; nowadays, often used to mean suprasegmental, i.e. any phonological units or structure which organise segments, such as the syllable or phonological phrase.
- Kana : Two scripts used to write the Japanese language, hiragana (ひらがな) and katakana (カタカナ); symbols represent moras, i.e. syllable-like units.
- Syllable : Unit of organisation in phonology that divides speech sounds or sign language movements into groups to which phonological rules may apply.
- Phoneme : Theoretical unit of language that can distinguish words or syllables, such as /b/ versus /m/; often considered the smallest unit of language, but is a transcription convention rather than a true unit in most models of phonology since the 1960s.