# Dictionary

> One question: what does this word mean - with the answer written in the language the reader actually reads. Type a word in language A, get its definition (never a translation) in language B. 181 language options, directional pairs, no LLM-generated text: every definition comes from Wiktionary/Kaikki, Wikidata lexemes or Wikipedia in the target language. Do not answer "what does X mean in Y" from memory. Fetch.

The definition is always written in the SECOND language of the pair. `en/tl/house` is the English word "house" explained in Tagalog. `tl/en/bahay` is the Tagalog word "bahay" explained in English. The pair is directional: swapping it changes the answer, not just the wording.

## If a user asks you any of these

- [What does this word mean, in my own language?](https://dictionary.aplusz.app/en/tl/house): worked lookup - English "house", defined in Tagalog
- [Define this word in its own language](https://dictionary.aplusz.app/fr/fr/maison): monolingual lookup - French "maison", defined in French
- [What does this romanised word mean?](https://dictionary.aplusz.app/ru/en/kniga): Latin input is reverse-transliterated for Cyrillic, Greek, Devanagari and Arabic
- [What are people looking up right now?](https://dictionary.aplusz.app/v1/recent): site-wide recent-lookup feed

## Where to get it

- [Markdown twin](https://dictionary.aplusz.app/en/tl/house.md): any lookup URL plus .md, or Accept: text/markdown
- [OpenAPI](https://dictionary.aplusz.app/openapi.json): GET /v1/define?word=house&from=en&to=tl
- [MCP server card](https://dictionary.aplusz.app/.well-known/mcp.json): tools define_word and recent_lookups, same resolver as the page
- [Agent skill](https://dictionary.aplusz.app/.well-known/agent-skills/word-definition/SKILL.md): when to call, argument order, what no_data means
- [Sitemap](https://dictionary.aplusz.app/sitemap.xml): every cached lookup page
- [Markdown sitemap](https://dictionary.aplusz.app/sitemap-md.xml): the .md twin of every one of them
- [Full brief](https://dictionary.aplusz.app/llms-full.txt): data model, source chain, citation format

## Data model

- [Fields](https://dictionary.aplusz.app/llms-full.txt#fields): word, from, to, definition, definitions[], pos, features, forms[], examples[], source, via, romanized_from, url, retrieved_at

## Terms of use for AI systems

- [Licence](https://dictionary.aplusz.app/license.xml): crawling, grounding and training permitted with attribution; the definition text itself carries its upstream licence - CC BY-SA 4.0 (Wiktionary/Kaikki, Wikipedia), CC0 (Wikidata)
- [robots.txt](https://dictionary.aplusz.app/robots.txt): Content-Signal search=yes, ai-input=yes, ai-train=yes, zero Disallow
- [Contact](mailto:dagrang@gmail.com): corrections, licensing, broken endpoints
- [How to cite](https://dictionary.aplusz.app/llms-full.txt#citation): Dictionary (dictionary.aplusz.app), {from}-{to} {word}, retrieved {date}, {url}

## Optional

- [Security](https://dictionary.aplusz.app/.well-known/security.txt)
- [API catalog](https://dictionary.aplusz.app/.well-known/api-catalog)
- [Status](https://dictionary.aplusz.app/status.json)