1) CCLI + CL 2) Century-beginning year 3) Early fifth century date 4) Early fifth-century date 5) Early fifth-century year 6) Fifth-century date 7) Fifth-century start 8) Forum 401 9) Half of DCCCII 10) Latin 401 11) MMV divided by V 12) One-fifth of mmv 13) Roman 401 14) Start of the fifth century 
Course Deviation Indicator. The vertical needle of a VOR indicator which shows the aircraft
Certificado de Depsito Interbancrio (Brazil) CDR collateralized depository receipt
Category development index. 
Communicable Disease Intelligence (Australia)
Course Deviation Indicator
Clostridium Difficile Infection
Common Data Interface