Best definitions plugins for WordPress
The most popular definitions plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. TooltipGlossary leads with 30+ active installs, ahead of Glossary (10+) and Dexonline Searchbox (10+). All 9 plugins tagged “definitions” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
Research this niche or see all plugins.
Top 8 definitions plugins
- 1.
TooltipGlossaryThe most installed definitions plugin, with 30+ active installs. No reviews yet, last updated 16 years ago. Tested only up to WordPress 3.0.5.
- 2.
Glossary10+ active installs. No reviews yet, last updated 17 years ago.
- 3.
Dexonline Searchbox10+ active installs. No reviews yet, last updated 11 years ago. Tested only up to WordPress 4.3.34.
- 4.
mowsterGlossary10+ active installs. Only 1 review so far, last updated 13 years ago. Tested only up to WordPress 3.4.2.
- 5.
Smart Word ExplainerFewer than 10 active installs. No reviews yet, updated 10 months ago. Tested only up to WordPress 6.9.11.
- 6.
WordnestFewer than 10 active installs. No reviews yet, updated 4 months ago.
- 7.
Intelligent Glossary EngineFewer than 10 active installs. No reviews yet, updated 4 months ago.
- 8.
Smart Dictionary LookupFewer than 10 active installs. No reviews yet, last updated 1 year ago. Tested only up to WordPress 6.8.12.
All 9 plugins tagged “definitions”
TooltipGlossary
Down in the last 7 days:361#24,920tooltipglossary16 years ago
Parses posts for defined glossary terms and adds links to the static glossary page containing the definition and a tooltip with the definition.
- Installs
- 30+
- Rating
- –
- Downloads
- 6/day
Glossary
Down in the last 7 days:306#31,393automatic-glossary17 years ago
Given a collection of glossary definition pages, automatically creates links in your page and post content for the words in your glossary.
- Installs
- 10+
- Rating
- –
- Downloads
- 0/day
Dexonline Searchbox
Down in the last 7 days:427#34,375by Alex11 years ago
Dexonline Searchbox is a WordPress plugin that adds a searchbox on the sidebar to easily look up Romanian words definitions on dexonline.ro.
- Installs
- 10+
- Rating
- –
- Downloads
- 1/day
mowsterGlossary
Down in the last 7 days:9,329#47,140by mowster13 years ago
Allows to manage and display a glossary in WordPress.
- Installs
- 10+
- Rating
- 5.0(1)
- Downloads
- 0/day
Smart Word Explainer
#59,440by Huzaifa Al Mesbah10 months ago
Enhance your content by providing instant word definitions, pronunciations, synonyms, and antonyms when users select words.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Wordnest
Down in the last 7 days:2,915#63,204by simonxuan4 months ago
A lightweight WordPress glossary tooltip plugin with zero frontend dependencies, native Chinese support, and English term matching.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Intelligent Glossary Engine
Down in the last 7 days:13,303#69,866by Mazlan Halim4 months ago
Create a searchable WordPress glossary with A-Z filtering, expandable definitions, and structured term management.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day
Smart Dictionary Lookup
Down in the last 7 days:5,024#71,322by Sabbir Noyon1 year ago
Smart, instant word definitions with a beautiful popup when users double-click text. Fully customizable, lightweight, and WordPress-friendly.
- Installs
- <10
- Rating
- –
- Downloads
- 2/day