{"uid":"cap_9mUPfOdlKUhz3OIGX93Ag","slug":"x402-deployer-x402-deployer-workers-dev-43d2b8a7","name":"Free Dictionary Word Definition Lookup","description":"English dictionary / word definition / lookup word / pronunciation / part of speech / synonyms / etymology adjacent. Returns part-of-speech-grouped definitions with usage examples and per-sense synonyms, plus IPA phonetic and a pronunciation audio URL when available. Wraps the public Free Dictionary API — no auth, commercial-OK.","url":"https://x402-deployer.x402-deployer.workers.dev/dictionary-define","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["word"],"properties":{"word":{"type":"string","description":"English word to define (case-insensitive). Single token, no whitespace required for compound words."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"word":{"type":"string"},"source":{"type":"string"},"meanings":{"type":"array","items":{"type":"object","properties":{"definitions":{"type":"array","items":{"type":"object","properties":{"example":{"type":"string"},"synonyms":{"type":"array","items":{"type":"string"}},"definition":{"type":"string"}}}},"part_of_speech":{"type":"string"}}}},"phonetic":{"type":"string"},"pronunciation_audio_url":{"type":"string"}}}}}}},"responseSchema":null,"example":{"request":{"word":"ephemeral"},"response":{"word":"ephemeral","source":"https://dictionaryapi.dev","meanings":[{"definitions":[{"synonyms":["ephemeron"],"definition":"Something which lasts for a short period of time."}],"part_of_speech":"noun"},{"definitions":[{"synonyms":["evanescent","fleeting","momentary","short","short-lived","temporary","transitory","volatile"],"definition":"Lasting for a short period of time."},{"definition":"Existing for only one day, as with some flowers, insects, and diseases."},{"definition":"(of a body of water) Usually dry, but filling with water for brief periods during and after precipitation."}],"part_of_speech":"adjective"}],"phonetic":"/əˈfɛ.mə.ɹəl/","pronunciation_audio_url":"https://api.dictionaryapi.dev/media/pronunciations/en/ephemeral-us.mp3"}},"exampleRequest":{"word":"ephemeral"},"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Onkb-I-yRZMJkDnABXu0I","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns part-of-speech-grouped definitions, usage examples, per-sense synonyms, IPA phonetics, and pronunciation audio URL for a given English word via the Free Dictionary API","exampleAgentPrompt":"What's the full dictionary definition of 'ephemeral' — including its part of speech, IPA pronunciation, a usage example, and any synonyms?","exampleUseCases":null,"resultDescription":"Returns a structured response grouped by part of speech, with one or more definitions per sense, usage example sentences, per-sense synonyms, IPA phonetic string, and a URL to a pronunciation audio file when available.","failureModes":["Word not found in Free Dictionary API — returns 404 or empty result","Word is misspelled or non-English — no definitions returned","Audio URL unavailable for some less common words","Rate limits or upstream API downtime causing request failure","Ambiguous or very archaic words may have incomplete entries"],"whenToPreferThis":"Choose this endpoint when you need structured English dictionary data including IPA pronunciation, audio, and grouped definitions with examples and synonyms — ideal for vocabulary tools, language learning apps, or any agent needing authoritative word definitions with phonetics. Prefer over thesaurus-only endpoints when you need full definitions rather than just synonyms or related words.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:52:06.858Z","isFirstParty":false}