diff --git a/docs/src/commands/tui.md b/docs/src/commands/tui.md
index eac7cb2..832ec43 100644
--- a/docs/src/commands/tui.md
+++ b/docs/src/commands/tui.md
@@ -23,7 +23,7 @@ Shows the same tree as `git loom status` with files enabled, plus a live diff pa
 │ ├╯                                   ││                               │
 │ ●  9999999 (upstream) ...            ││                               │
 └──────────────────────────────────────┘└───────────────────────────────┘
- Navigate: ↑/↓ | Fold/unfold: ←/→ | Select: space | Commit: c/C | ...
+ Navigate: ↑/↓ | Close/open: ←/→ | Select: space | Commit: c/C | ...
 ```
 
 Short IDs are displayed like in `git loom status`, so the tree doubles as a cheat-sheet for manual commands. Commit rows leave out the abbreviated hash: the short ID already names the commit for every loom command.
@@ -33,8 +33,8 @@ Short IDs are displayed like in `git loom status`, so the tree doubles as a chea
 | Key | Effect |
 |-----|--------|
 | `↑`/`k`, `↓`/`j` | Move the cursor (tree focused) or scroll the diff (diff focused) |
-| `→`/`l` / `←`/`h` | Unfold / fold the current row; `←` on a file row jumps to its parent |
-| `Enter` | Toggle fold (or confirm a fold target — see below) |
+| `←`/`h` / `→`/`l` | Close / open the current row; `←` on a file row jumps to its parent |
+| `Enter` | Toggle open/close (or confirm a fold target — see below) |
 | `Tab` | Switch focus between tree and diff pane |
 | `Ctrl-←` / `Ctrl-→` | Narrow / widen the left pane (2% per press, clamped to 10–90%) |
 | `PgUp`/`PgDn` | Scroll the diff by a page |
@@ -44,7 +44,7 @@ Short IDs are displayed like in `git loom status`, so the tree doubles as a chea
 | `Esc` | Cancel fold, commit, rename, or new-branch mode → clear selection → quit (first that applies) |
 | `q` / `Ctrl-C` | Quit |
 
-Commits are collapsed by default; unfolding reveals one row per changed file. Local changes start expanded. Expansion state survives reloads.
+Commits are collapsed by default; opening one reveals a row per changed file. Local changes start expanded. Expansion state survives reloads.
 
 ### Selection
 
diff --git a/specs/020-tui.md b/specs/020-tui.md
index 58f215b..9e6847d 100644
--- a/specs/020-tui.md
+++ b/specs/020-tui.md
@@ -5,7 +5,7 @@
 `git loom tui` opens an interactive, full-screen view of the integration
 branch: the branch-aware status tree on the left (the same structure as
 `loom status`), and the diff of the item under the cursor on the right.
-Rows can be unfolded to reveal the files a commit changed, one or more rows
+Rows can be opened to reveal the files a commit changed, one or more rows
 can be selected, and common loom actions (commit, fold, branch, drop,
 reword) run directly from the tree without leaving it: prompts are popups,
 results go to a log and the status bar. After every action the tree reloads
@@ -38,7 +38,7 @@ No arguments or flags. The global `--theme` and `--no-color` options apply.
 │ ├╯                           ││                               │
 │ ●  9999999 (upstream) ...    ││                               │
 └──────────────────────────────┘└───────────────────────────────┘
- Navigate: ↑/↓ | Fold/unfold: ←/→ | Select: space | Commit: c/C | Fold: f | ...
+ Navigate: ↑/↓ | Close/open: ←/→ | Select: space | Commit: c/C | Fold: f | ...
 ```
 
 Short IDs are displayed like in `loom status`, so the tree doubles as a
@@ -58,19 +58,19 @@ stay readable — the hunk selector uses the same highlight.
   [Diff Pane](#diff-pane)). Cached per row until the tree reloads.
 - **Status bar**: available shortcuts, mode hints, or a transient notice.
 
-## Tree Content and Folding
+## Tree Content and Open/Close
 
-The tree mirrors `loom status -f`, with folding:
+The tree mirrors `loom status -f`, with rows that open and close:
 
 - **Commits are collapsed by default.** A collapsed commit with files shows
-  a dim `(N files)` hint. Unfolding reveals one row per changed file, with
+  a dim `(N files)` hint. Opening one reveals a row per changed file, with
   its `<commit-sid>:<index>` short ID.
 - **Local changes start expanded**, listing every staged, unstaged, and
   untracked file.
-- `→`/`l`/`Enter` unfolds, `←`/`h` folds. Pressing `←` on a child file row
-  jumps to its parent and folds it.
+- `→`/`l`/`Enter` opens, `←`/`h` closes. Pressing `←` on a child file row
+  jumps to its parent and closes it.
 - Expansion state is keyed by commit OID, so it survives reloads (a commit
-  rewritten by an action gets a new OID and folds again — acceptable).
+  rewritten by an action gets a new OID and closes again — acceptable).
 
 ## Navigation
 
diff --git a/src/tui/app.rs b/src/tui/app.rs
index 90e6dd3..6e41a3d 100644
--- a/src/tui/app.rs
+++ b/src/tui/app.rs
@@ -2017,7 +2017,7 @@ impl ShellApp for App<'_> {
     fn status_hints(&self, _focused: PaneId) -> Vec<Cow<'static, str>> {
         vec![
             "Navigate: ↑/↓".into(),
-            "Fold/unfold: ←/→".into(),
+            "Close/open: ←/→".into(),
             "Select: space".into(),
             "Commit: c/C".into(),
             "Fold: f".into(),
diff --git a/src/tui/app_test.rs b/src/tui/app_test.rs
index 7001f4a..169898a 100644
--- a/src/tui/app_test.rs
+++ b/src/tui/app_test.rs
@@ -2170,7 +2170,7 @@ fn status_bar_matches_spec() {
         .collect();
     assert!(
         last_row.starts_with(
-            " Navigate: ↑/↓ | Fold/unfold: ←/→ | Select: space | Commit: c/C | Fold: f \
+            " Navigate: ↑/↓ | Close/open: ←/→ | Select: space | Commit: c/C | Fold: f \
              | Branch: b | Drop: d | Reword: r | Log: L | Refresh: R | Quit: q"
         ),
         "got: {:?}",