English abbreviations from cohac to col
- COHAC (Cradle Of Hope Adoption Center)
- COHORT (Cohesion Operational Readiness Training)
- COHR (Citizens Organized for Harm Reduction)
- COHS (Cooperative Open Hypermedia System)
- COHSI ((instrumentation) Cambridge OH-Suppression Instrument)
- COI (Certificate of Insurance)
- COI. (Conjugi ("To my Husband [or Wife]"))
- COIC (Combat Operations and Intelligence Center)
- COIF (Charities Official Investment Fund)
- COIL (Chemical Oxygen Iodine Laser)
- COIN (Counter-Insurgency (military))
- COINS (Community On-line Intelligence System)
- COINTELPRO (COunter-INTELligence PROgram)
- Coione. (Communione ("Communion" abl. case))
- COIR (Command Operation and Information Request)
- COIST (Company Intelligence Support Team)
- COJ (Coonabarabran Airport)
- COK (Cook Islands (ISO 3166 trigram))
- Col (Colonel)
- col. (color(ed))
