From 829677a7b7953bbf8a97f64b6595ec6d1e2a2178 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Fri, 30 Jan 2026 11:50:07 +0100
Subject: [PATCH 1/3] fix: prevent breaking inside definition items

Ensure that terms and their descriptions remain together by setting the block to be non-breakable.
---
 src/resources/formats/typst/pandoc/quarto/definitions.typ | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/resources/formats/typst/pandoc/quarto/definitions.typ b/src/resources/formats/typst/pandoc/quarto/definitions.typ
index 161469dac4..5657c633b8 100644
--- a/src/resources/formats/typst/pandoc/quarto/definitions.typ
+++ b/src/resources/formats/typst/pandoc/quarto/definitions.typ
@@ -28,6 +28,9 @@
   it
 }
 
+// Prevent breaking inside definition items, i.e., keep term and description together.
+#show terms.item: set block(breakable: false)
+
 // Some quarto-specific definitions.
 
 #show raw.where(block: true): set block(

From 6cc92310317e89a42394c9552db88b44ce334336 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20Canouil?=
 <8896044+mcanouil@users.noreply.github.com>
Date: Fri, 30 Jan 2026 11:56:30 +0100
Subject: [PATCH 2/3] chore: add changelog

---
 news/changelog-1.9.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/news/changelog-1.9.md b/news/changelog-1.9.md
index ff9ffefd75..b10afe00db 100644
--- a/news/changelog-1.9.md
+++ b/news/changelog-1.9.md
@@ -56,6 +56,7 @@ All changes included in 1.9:
 - ([#13870](https://github.com/quarto-dev/quarto-cli/issues/13870)): Add support for `alt` attribute on cross-referenced equations for improved accessibility. (author: @mcanouil)
 - ([#13950](https://github.com/quarto-dev/quarto-cli/pull/13950)): Replace ctheorems with theorion package for theorem environments. Add `theorem-appearance` option to control styling: `simple` (default, classic LaTeX style), `fancy` (colored boxes with brand colors), `clouds` (rounded backgrounds), or `rainbow` (colored start border and colored title).
 - ([#13954](https://github.com/quarto-dev/quarto-cli/issues/13954)): Add support for Typst book projects via format extensions. Quarto now bundles the `orange-book` extension which provides a textbook-style format with chapter numbering, cross-references, and professional styling. Book projects with `format: typst` automatically use this extension.
+- ([#13978])(https://github.com/quarto-dev/quarto-cli/pull/13978)): Keep term and description together in definition lists to avoid breaking across pages. (author: @mcanouil)
 
 ### `pdf`
 

From 6df044516287acce6b0b0a94ec93a72be95bb7be Mon Sep 17 00:00:00 2001
From: Gordon Woodhull <gordon.woodhull@posit.co>
Date: Fri, 30 Jan 2026 10:21:23 -0500
Subject: [PATCH 3/3] test: add ensurePdfTextPositions test for definition item
 no-break

Verifies that definition list terms and descriptions stay on the same page
and that descriptions are indented from terms.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 .../typst/definition-item-no-break.qmd        | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/docs/smoke-all/typst/definition-item-no-break.qmd

diff --git a/tests/docs/smoke-all/typst/definition-item-no-break.qmd b/tests/docs/smoke-all/typst/definition-item-no-break.qmd
new file mode 100644
index 0000000000..9874a40fde
--- /dev/null
+++ b/tests/docs/smoke-all/typst/definition-item-no-break.qmd
@@ -0,0 +1,24 @@
+---
+title: "Definition Item No Break Test"
+format: typst
+_quarto:
+  tests:
+    typst:
+      ensurePdfTextPositions:
+        - # Term and description must be on the same page (fails if on different pages)
+          - subject: "Generate HTML"
+            relation: below
+            object: "Multi-format"
+        - # Description should be indented (NOT left-aligned with term)
+          - subject: "Generate HTML"
+            relation: leftAligned
+            object: "Multi-format"
+      noErrors: default
+---
+
+## Introduction
+
+{{< lipsum 4 >}}
+
+Multi-format
+: Generate HTML, PDF, Word, ePub, and more from one source.