Word Definition Lookup
Look up definitions, synonyms, and examples for any English word
About this tool
Search any English word to get phonetic pronunciation, part of speech, multiple definitions with usage examples, synonyms, and antonyms — all powered by the free Dictionary API with no account required. Your last 10 searches are saved locally so you can revisit them easily.
How to use
- 1 Type a word in the search box and press Enter or click Search.
- 2 View the phonetic transcription, part of speech, and all definitions.
- 3 Scroll down to see usage examples, synonyms, and antonyms.
- 4 Click any word in your search history (bottom of page) to look it up again.
What a dictionary entry is really made of
A single word rarely has a single meaning. When you look one up here, the result is structured the way lexicographers organize language: the headword, one or more phonetic transcriptions, and then a list of meanings grouped by part of speech. Each part of speech (noun, verb, adjective) carries its own numbered definitions, and many definitions include an example sentence showing the word in natural use. This tool renders up to five definitions per part of speech, plus any synonyms and antonyms the source provides. Understanding this hierarchy explains why a common word like "run" returns a long entry: it is a verb, a noun, and an adjective, each with several senses.
Reading phonetic notation
The grey transcription beside the headword — for example /rʌn/ — uses the International Phonetic Alphabet (IPA). Each symbol maps to one sound, regardless of spelling, which is why IPA is unambiguous where English spelling is not. The slashes signal a phonemic transcription: the idealized sounds of the word rather than one speaker's exact pronunciation. If you sound out each symbol, you get the standard pronunciation even for words whose spelling gives no hint, like "colonel" /ˈkɜːnəl/.
Where the data comes from
This tool is a front end for the Free Dictionary API (dictionaryapi.dev), an open, key-free service. When you search, the word — and only the word — is sent to that API over HTTPS, and the structured entry comes back as JSON, which the tool lays out for you. That is an important privacy distinction worth stating plainly: the word you type is transmitted to a third-party dictionary service, because the dictionary data does not live on this site. Your search history, however, never leaves your device. It is kept in your browser's localStorage (the last 10 unique words) so you can revisit lookups, and clearing it removes it entirely.
A worked example: following the trail
Search candid and you get the adjective sense — "truthful and straightforward; frank" — often with an example and a cluster of synonyms such as frank, open, and blunt, plus antonyms like guarded. Here is the feature that makes this more than a flat dictionary: every synonym and antonym is a button. Click frank and the tool immediately runs a fresh lookup for that word, building a chain of related vocabulary. This turns a single definition into a guided tour of a word's neighborhood — useful when you are hunting for the precise term and the first word you thought of was almost, but not quite, right.
Genuine use cases
- Writing and editing. Confirm a word means exactly what you intend before you commit it, and jump to a crisper synonym when the obvious word feels flat.
- Language learning. The IPA transcription plus example sentences give learners both pronunciation and real usage in one place.
- Crosswords and word games. Verify whether an unusual word is real and what part of speech it is.
- Vocabulary building. Use the synonym/antonym buttons to explore a semantic field and pick up related words you didn't know.
Tips and common mistakes
- Search the base form. The dictionary indexes lemmas, so "run" succeeds where "running" or "ran" may return "not found." If a conjugated or plural form fails, try the root.
- A 404 means "not in this dictionary," not "not a word." Proper nouns, very new slang, and rare technical terms are often absent. Check spelling first, then accept that some words simply aren't covered.
- Case doesn't matter. Input is lowercased before searching, so "Candid" and "candid" behave identically.
- An offline or network error stops the lookup. Because definitions come from an external API, the tool needs a connection to fetch new words, though your saved history still displays.
- Long entries are trimmed. The tool caps the display at five definitions and eight synonyms per sense to stay readable; extremely polysemous words have even more meanings than you see.