Haici Dictionary (Dict.CN) is an authoritative dictionary, online dictionary and online translation website. The official site covers English–Chinese, Chinese, Shanghainese, Cantonese, abbreviations and names, and Dict.CN has been in service since November 27, 2003.

Dictionary entries provide pronunciation, definitions, English explanations, examples, usage samples and word collocations. The site also links related dictionary websites including Oxford Advanced Learner's Dictionary, Merriam-Webster, Dictionary.com, The Free Dictionary and Wikipedia.

The provided official material does not include open-source or self-hosted deployment information; authorization, API access and integration support would need to be confirmed separately.