# Glossary
The vocabulary of plain-text note-taking, one page per term, each ending with how tnotes handles it.
- BacklinkA backlink is an inbound link: the list of notes that link to the note you are reading, computed by the tool rather than written by hand.
- Daily noteA daily note is one note per calendar day, named by date (2026-09-22), used as a running log and inbox from which durable notes are linked out.
- Front matterFront matter is a metadata block at the top of a Markdown file, usually YAML between two --- lines, holding fields like title, date and tags.
- MarkdownMarkdown is a plain-text formatting syntax (# headings, - lists, **bold**) designed to be readable as-is and convertible to HTML.
- Plain-text notesPlain-text notes are notes stored as ordinary text files on disk, readable and editable by any program, with no database or proprietary container.
- Tag (#tag)A tag is a keyword attached to a note, usually written inline as #word, that groups notes across folders and can be filtered on.
- TUI (text-based user interface)A TUI is a full-screen program that draws panes, lists and editors with characters inside a terminal, taking keyboard and often mouse input.
- VaultA vault is the folder on disk that holds a set of notes; the tool indexes it, links resolve inside it, and its subfolders are the note hierarchy.
- WikilinkA wikilink is a link written as [[Page title]] that points to another note by its title instead of a URL or file path.
- ZettelkastenA Zettelkasten is a note system of small, single-idea notes, each with a fixed address, connected by explicit links rather than filed under topics.