- Conjunction
- Cataphoric reference
- Categorisation
- Catenation
- CBT
- Choral repetition
- Chunks
- Class contract
- Class survey
- Classroom management
- Clause
- CLIL
- Cline
- Clipping
- Closed pairs
- Cloze
- Cognitive overload
- Cognitive strategies
- Cognitive theory
- Coherence
- Cohesion
- Collaborative activity
- Collocation
- Communicative approach
- Comprehensible input
- Concept checking
- Concept qs
- Congruency
- Connected speech
- Connotation
- Consciousness raising
- Consolidation
- Consonant cluster
- Content validity
- Content words
- Contextualisation
- Controlled language
- Correction codes
- Counselling
- Countable
- Cuisenaire rods
- Curriculum




