- Capital Letters
- Categorial Rules
- Categorization
- CENPARMI
- Center for Computational Learning Systems-CCLS
- Chain-Code Directions
- Chaos
- Character N-Grams
- Character Segmentation
- Character-Shapes
- Checkers
- Classification
- Classifier
- Clause
- Closed-Form Solutions
- Clustering
- Clustering Document
- Co-Reference Resolution
- Cobuild English Dictionary
- Codes
- Cognitive Pscychology
- Collins Parser
- Collocations
- Columbia Arabic Dialect Modeling Group-CADIM
- Commonsense Knowledge
- Commonsense Reasoning
- Comparison Questions
- Compilers
- Complement-COM
- Complementizer Phrase-CP
- Complexity
- Complexity Theory
- Compound Noun
- Compressed Representation
- Computational Linguistics-CL
- Computer Science
- Computer Vision
- Computer-Aided Font Learning
- Computer-Aided Language Learning
- Computer-Aided Pronunciation Learning
- Concepts
- Concordancer
- Conditional Probabilistic Learning
- Confusion Network
- Connected Components
- Consonants
- Consonants and Semi Consonants
- Continuous
- Continuous Density
- Contours
- Control Theory
- Convolution
- Convolution Layers
- Corpora
- Corpus of Contemporary Arabic
- Corpus-Based Machine Learning
- Covariance Matrix
- Cross Lingual Plagiarism Detection-CLPD
- Cross-Word
- Crude Digital Word
- Cursive Writing