Definer - Popup Dictionary & Translator 作者： Lumetrium

Double-click a word or highlight text while holding the "Ctrl" key (or another hotkey you set) to bring up a pop-up bubble with translations, definitions, images, search engine results, and more. You can quickly switch between data sources and languages, and look up words on any webpage, including PDFs.

This browser dictionary app covers a wide range of use-cases, from language learning, sentence mining, and vocabulary building to academic research and casual browsing.

⭐ Key Features
- Multiple built-in data sources with the option to add custom sources.
- Results in multiple languages, allowing you to switch between them on the fly.
- Pronunciation recordings and IPA transcriptions, with the "autoplay" feature for audio.
- Shortcuts and hotkeys for different pop-up activation triggers.
- Settings sync and backup with support for multiple settings profiles.
- Blacklist and whitelist to control what websites and pages the pop-up bubble can appear on.
- PDF support through an integrated PDF Reader.
- Resizable on-page pop-up bubble.
- Alternative lookup method by typing the query instead of selecting it on a page.
- Dark mode support.
- Four built-in themes with the option to create custom themes using the Theme Editor.
- Four built-in theme schedules with the option to create custom timelines using the Theme Schedule Editor.


🌐 Sources
There are several built-in data sources available, and you can also add your own sources using the "Custom Source" feature. To do this, simply enter a website URL in the settings to include it as a source. You can also apply CSS (styling language) if you want to customize how it appears in the pop-up bubble.

The available built-in sources include:
- Google Translate
- Google Dictionary
- DuckDuckGo Instant Answers
- Wikipedia
- Bing Images
- Google Search
- Speech synthesizer (audio source)
- Google Dictionary Pronunciations (audio source)


🔠 Languages
Results are fetched in multiple languages at the same time.

You can set your preferred languages in the settings and rank them by priority. If there's no information in your top-choice language, results in the next preferred language will be shown automatically. You can also manually switch between results in different languages directly from the pop-up bubble.

Choose from any of the 487 languages listed in the ISO 639-2 Language Code List. However, keep in mind that not all sources support every language, so the availability of results may vary depending on the language selected.


📄 PDF Support
Definer comes with a built-in PDF Reader that lets you use the pop-up bubble feature on PDFs.

To open the PDF Reader: click on Definer’s icon → 3 vertical dots → “PDF Reader”.

Screenshots and details: https://www.reddit.com/r/lumetrium_definer/s/Hgy5ApbVoq


🎨 Appearance
You can completely personalize the appearance of the extension. Change the colors, fonts, corner roundness, and even add your own CSS if you're really into customization.

This is made possible by Definer's integrated Theme Editor, which allows you to design unique and attractive themes in minutes.

It's also possible to configure themes to change automatically depending on the time of day by placing them on a timeline in the Theme Schedule Editor.


💬 Bubble
A bubble is a small pop-up window that appears over selected text on a webpage when it's needed. You can:
- Adjust the bubble's size.
- Set up hotkeys to trigger the bubble.
- Create rules for when the bubble should appear on certain websites or webpages.


⌨️ Hotkeys and Triggers
Configure triggers and assign additional hotkeys so that the bubble only appears when you press specific keys on the keyboard while selecting text. These triggers can be tailored for special situations, such as when you're typing in a form or editing a document.

There are four triggers available:
- Mouse Selection: By default, hold the "Ctrl" key while selecting text with your mouse to make the bubble appear.
- Double-click a Word: By default, the bubble will appear when you double-click on a word without needing any hotkeys.
- Keyboard Shortcut: The default hotkey is "Alt + G", meaning you need to press these two keys at the same time after highlighting a text fragment.
- Context Menu Action: After selecting a word, right-click and choose "Define [selected text]" from the context menu. This action does not support hotkeys.


🌓 Blacklist & Whitelist

Definer can manage bubble activation in two modes:
1. Enabled on all pages, except those blacklisted (default setting)
2. Disabled on all pages, except those whitelisted

You can create URL rules that determine if the bubble should be active on the page you’re viewing. To do this, click on Definer's icon in your browser toolbar, select "Configure," and toggle the switch for either "This website" or "This page."

This creates a simple rule. However, you can also manually create more flexible rules in the settings to match URLs based on the following conditions:
- Matches domain
- Matches URL
- URL contains
- URL starts with
- URL ends with
- Matches pattern
- Matches regular expression

Definer's icon will turn gray when the bubble is disabled on the active page.


⚙️ Setting sync
With so many customization options, you’ll appreciate the convenience of backing up and synchronizing your settings automatically. Definer makes it easy to keep everything in order across all your devices.
- Cloud Storage: Store your extension settings in the cloud so you never have to worry about losing them.
- Sync Across Devices: Whether you're on your laptop at home or your desktop at work, keep your settings consistent across all your computers and browsers.
- Create Multiple Profiles: Set up profiles with different settings for various tasks or environments.
- Switch Profiles: Quickly change profiles whenever you need to adjust your settings for different situations.


💡 Use Cases
1. Language Learning: Instantly translate and understand new words while reading news articles online or books in PDF. View multilingual dictionary entries with images and pronunciation recordings to improve comprehension and grow vocabulary.
2. Research: Conduct web searches without leaving the current page. This is particularly useful for students and researchers working with multiple academic sources or needing quick access to definitions and context.
3. Writing and Editing: Look up synonyms and definitions to improve the quality and accuracy of your writing.
4. Casual Browsing: Quickly understand unfamiliar terms or concepts encountered during everyday browsing without having to open new tabs or perform separate searches.
5. Travel and Communication: When planning travel or communicating in different languages, quickly translate text on websites or documents to communicate more effectively.
6. Content Creation: Gather context and definitions for terms used in blogs, news, or other media by accessing concise and relevant information quickly.
7. Accessibility: Individuals with reading difficulties or visual impairments can use the pronunciation feature to hear the selected text read aloud, aiding in comprehension and accessibility.
8. Technical Fields: Professionals in technical or specialized fields can swiftly look up complex terms or jargon related to their work.


❓ FAQ

WHY DOESN'T IT WORK ON SOME PAGES?
The bubble will not work in tabs that were open prior to installation. It's recommended to restart your browser after installing this extension.

WHY IS A SOURCE GRAYED OUT?
If results for a particular source aren't found, that source will be grayed out and skipped to the next one.

CAN IT WORK ON PAYWALLED PAGES?
Yes, it works on any webpage, including those behind paywalls.

DOES IT WORK ON EPUB (E-BOOK) FILES?
Yes, it can handle .epub files if you use an online reader like https://reader.ttsu.app

DOES IT WORK IN GOOGLE DOCS?
No. Google Docs renders its contents in a way that restricts extensions from accessing the text directly. As a workaround, download the document by going to "File" -> "Download" -> "PDF document". After that, open the file with Definer's built-in PDF Reader.



🔑 Permissions and Privacy
For detailed explanations of each permission that Definer uses, check out the Privacy Policy on the Lumetrium website: https://lumetrium.com/legal?service=definer&document=privacy-policy


⚠️ Troubleshooting
If something isn't working properly, here's what you can try:
- Restart your browser. This often fixes minor glitches.
- Temporarily disable other extensions. They can sometimes conflict with each other.
- Reinstall the extension. If all else fails, a fresh install might do the trick.

Still having issues? Head over to the r/lumetrium_definer subreddit or seek support via email. Include screenshots of the issue if possible, as this might help resolve your problem more quickly. Be sure to mention which browser you're using.


📧 Contacts
You can always leave a review if you have any thoughts or suggestions. If you'd like to chat, report a bug, or share ideas, come join our Reddit community: https://www.reddit.com/r/lumetrium_definer

On Reddit, you can find release notes, see what features people are requesting, participate in discussions, and even get sneak peeks of upcoming updates before they launch.

Want to reach out directly? You can email me (the author of this extension) at definer@lumetrium.com