- C-accent
- Cadence
- Calling contour
- Cardinal vowel
- Carry-over assimilation
- Catathesis
- Categorical perception
- Centralised
- Central vowel
- Centring diphthong
- Cepstrum
- Chain shift
- Checked
- Checking tone
- Chest pulse
- Chroneme
- Citation form
- Clash
- Clear /l/
- Click
- Clipping
- Clitic
- Closed phase
- Closed syllable
- Close-mid vowel
- Close vowel
- Closing diphthong
- Closing phase
- Cluster
- Cluster reduction
- Coalescence
- Coarticulation
- Cochlea
- Coda
- Compact
- Compensatory lengthening
- Complementary distribution
- Complex tone
- Complex wave
- Compound stress
- Compression
- Conditioning factor
- Conductive hearing loss
- Connected speech feature
- Consonant
- Consonantal
- Consonant capture
- Consonant cluster
- Consonant harmony
- Constricted glottis
- Content word
- Context
- Context-free
- Context-sensitive voicing
- Continuant
- Contoid
- Contour tone
- Contrast
- Coronal
- Counter-assertive
- Counter-bleeding
- Counter-example
- Counter-presuppositional
- Creaky voice
- Creole
- Crico-arytenoid muscles
- Cricoid cartilage
- Crico-thyroid muscles
- C symbol
- Cyclic rule
SID
Speech Internet Dictionary
