Reverse Dictionary lets users search for words by entering a definition, with examples such as describing an unpleasantly moist phrase.
WhatsThatSign vs OneLook Reverse
How do WhatsThatSign and OneLook Reverse compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | WhatsThatSign | OneLook Reverse |
|---|---|---|
| What it is | This ASL dictionary offers sign or word searches, with options for alternate spellings and an interface for finding signs. | OneLook’s reverse dictionary finds related words from a description, with thesaurus results and filters for refining searches. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | iOS, Web |
| Open source | Not stated | Not stated |
| Language | — | — |
| Alternatives |
Other options to consider
Sites similar to both WhatsThatSign and OneLook Reverse.
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 multilingual Sign Language Dictionary records more than 1,000 signed words across over 100 years and describes their meaning, use, and history.
Visitors can search the interactive Toki Pona dictionary at nimi.li and browse its word entries.
The Mini Dictionary supports Chinese character and word lookup, with phonetic and Pinyin input options.
The International Sign dictionary provides word entries, example texts, fingerspelling, and category browsing.






