Other
- Celtic Reconstructionist
- Change request
- Chart Rulership or Chart Ruler, in astrology
- Cognitive radio, an outgrowth of software-defined radio
- Consciousness raising
- Conversion rate, used in marketing
- Corporate social responsibility
- Credit (finance), in accounting
- Cree language, by ISO 639 alpha-2 code
- Critical reading, on the SAT
- Crore, 10,000,000 in the Hindu-Arabic numeral system
- Crown Royal, a brand
- Public toilet, or comfort room
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