Reverse dictionary
Describe a concept and instantly find the words related to it — then check whether the domain is available on any of them. A reverse dictionary built for naming.
Start typing — results appear once you've typed a real word.
What is a reverse dictionary?
A reverse dictionary runs a normal one backwards: instead of looking up what a word means, you describe a concept and get the words whose meanings point back to it.
Type a familiar word — say instant — and you'll get back words like jiffy, trice, and flash. They aren't synonyms; they're words tied to your idea through their definitions. That's what makes a reverse dictionary so good for naming: it surfaces adjacent, less-obvious words that still tell your story.
Use it to search for a word by its definition, recover a word that's on the tip of your tongue, or explore a theme for a brand — then click any result to check domain availability.
How it works
Describe your idea
Type a word or short phrase that captures the concept you're naming — a feeling, a value, or a vibe. You can describe what you do, not just name it.
Explore related words
We rank English words by how strongly they associate with your input, drawing on dictionary definitions and decades of thesaurus groupings. The results are adjacent ideas, not dry synonyms.
Check the domain
Click any word to instantly see which domain extensions are available and at what price, then keep exploring from there.
Reverse dictionary vs. thesaurus
A thesaurus gives you synonyms — words that mean the same thing. A reverse dictionary gives you associations — adjacent ideas that spark new directions.
Thesaurus
Synonyms — the same meaning
- immediate
- instantaneous
- prompt
- rapid
Reverse dictionary
Associations — adjacent ideas
- jiffy
- trice
- flash
- blink
Find the name — and the domain — hiding in the dictionary
Real dictionary words make the most memorable brands. Turn an idea into a shortlist of words, then turn the best one into a domain.
Every related word links straight to live availability. Found one you love? Send it to the domain name generator for prefixes and suffixes, spin up brand ideas with the business name generator, or check it across 800+ domain extensions at once.
Reverse dictionary FAQs
A reverse dictionary works backwards from a normal one. Instead of looking up what a word means, you describe a concept and get back the words whose meanings relate to it. Type instant and you'll see words like jiffy, trice, and flash — useful when a word is on the tip of your tongue, or when you're searching for a word by its definition.
A thesaurus gives you synonyms — words that mean the same thing. A reverse dictionary gives you associations — adjacent words connected to your idea through their definitions. Synonyms tend to feel interchangeable and a little dry; associations open up new, less-obvious directions, which is exactly what you want when naming something.
We look at how often your word appears in the definitions of other words, then combine that with established thesaurus groupings to rank the strongest associations. Senses and definitions come from Open English WordNet; the related-word groupings come from Moby Thesaurus II. The result is a ranked list of words connected to your concept.
Yes — that's the point. Click any related word to instantly check domain availability across popular extensions, or send it to the domain name generator for more variations. You can also check any name directly with the domain checker.
Yes. The reverse dictionary is completely free to use — no account required. Search as many concepts as you like and check domain availability on any result instantly.
Start with a word that captures the heart of your idea — a benefit you offer, a feeling you want to evoke, or a value you care about. Abstract concepts like fast, calm, grow, or bright tend to surface the most interesting and brandable associations.
Senses and definitions come from Open English WordNet (CC BY 4.0), and the related-word groupings come from Moby Thesaurus II by Grady Ward (public domain).
Senses and definitions from Open English WordNet (CC BY 4.0). Related-word groupings from Moby Thesaurus II by Grady Ward (public domain).