Copyright, Licenses & DMCA
Effective October 2026
Sources we build on
| Source | License | What we do |
|---|---|---|
| Wiktionary | CC BY-SA 4.0 | Credit on each page; adapted text marked and shared under the same license |
| Wikiquote | CC BY-SA 4.0 | Same as Wiktionary |
| Wikidata | CC0 (public domain) | Used for people, works and dates; credit given as a courtesy |
| Google Books Ngram data | CC BY 3.0 | “Data: Google Books Ngram” under each usage chart |
| Public-domain texts (e.g. Project Gutenberg, U.S. government works) | Public domain | Cited as sources |
Our own original writing, design and brand are © 2026 iknowlingo. All rights reserved, except where a page says otherwise.
Copyright complaints (DMCA)
If you believe something on iknowlingo infringes your copyright, send a notice that includes:
- Your name, address, phone and email, and your physical or electronic signature.
- The work you believe is infringed.
- The page address (URL) of the material.
- A statement that you believe in good faith the use is not authorized by the owner, its agent or the law.
- A statement, under penalty of perjury, that the notice is accurate and that you are the owner or authorized to act for the owner.
Send notices to: John McIntosh, hello@iknowlingo.com, with “DMCA notice” in the subject line. We remove or disable material that is the subject of a valid notice, and we terminate repeat infringers’ accounts in appropriate circumstances. If your material was removed by mistake, you may send a counter-notice to the same address.