海词词典 is a Chrome browser add-on developed by dict.cn. It allows users to easily look up and translate words while browsing web pages. With this extension, users can quickly retrieve comprehensive and authoritative definitions from the HaiCi Dictionary, which offers English-Chinese and Chinese-English translations. The "Frequency Distribution of Definitions" feature provides a clear visualization of the commonly used meanings of words.

By installing the HaiCi Dictionary add-on, users can enjoy the following features:

1. Quick word lookup with the mouse: Simply hover over an English or Chinese word to instantly retrieve its definition.

2. Seamless and quick word translation: Double-click or swipe over any word on a webpage to look it up.

3. Efficient dictionary search: Enter the word you want to search for and quickly obtain the most comprehensive definition from the HaiCi Dictionary.

4. Access to the professional and authoritative "Frequency Distribution of Definitions" feature.

This add-on is the official extension provided by HaiCi Dictionary (Dict.cn).