| Allowed sites | The sites a project's editor may appear on, per environment. |
| Chunks | An export's HTML in pieces — body, CSS, JS, fonts — to place inside your own page. |
| Design | What your user makes in the editor. Never "template" or "document". |
| Design document | A design as JSON, to store and hand back. More |
| Document | One of the four modes: something for paper or a PDF. |
| End user | A person who uses the editor inside your product, known to Lettrove only by your id for them. |
| Environment | test or live, a property of keys. Not to be confused with mode. |
| Export | A design taken out of Lettrove: HTML, text, PDF, PNG, ZIP. Each is recorded. |
| Merge tag | A placeholder such as {{contact.first_name}}, filled at export. |
| Mode | What a project's editor makes: email, page (landing page), popup or document. |
| Project | One place your product uses the editor, with its own keys, sites, settings and brand. |
| Publishable key | lt_pk_…: public, in your page; says which project. |
| Release | A version of the editor served from lettrove-embed.com, e.g. 1.2.3. |
| Release candidate | A release still being tested, e.g. 1.3.0-rc.1; opens with test keys only. |
| Revision | A design's save count; goes up by one with each save. |
| Secret key | lt_sk_…: on your server only; mints tokens and calls the server API. |
| Token | A short-lived pass (up to 15 minutes) for one person, on one site, minted by your server. |
| Webhook | An address on your server that Lettrove calls when something happens. |