The multilingual Sign Language Dictionary records more than 1,000 signed words across over 100 years and describes their meaning, use, and history.
ReverseDictionary vs WhatsThatSign
How do ReverseDictionary and WhatsThatSign compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | ReverseDictionary | WhatsThatSign |
|---|---|---|
| What it is | Reverse Dictionary lets users search for words by entering a definition, with examples such as describing an unpleasantly moist phrase. | This ASL dictionary offers sign or word searches, with options for alternate spellings and an interface for finding signs. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | — | — |
| Alternatives |
Other options to consider
Sites similar to both ReverseDictionary and WhatsThatSign.
OneLook’s reverse dictionary finds related words from a description, with thesaurus results and filters for refining searches.
An official South Korean e-government dictionary site from the National Institute of Korean Language, providing a Korean-English learners' dictionary with category search, a word of the day, small-window and advanced views, multiple language pairs and Open API access.
The Glosbe dictionary provides multilingual word definitions and translation resources across languages.
The Mini Dictionary supports Chinese character and word lookup, with phonetic and Pinyin input options.
Visitors can search the interactive Toki Pona dictionary at nimi.li and browse its word entries.






