diff --git a/src/public/javascripts/services/context_menu.js b/src/public/javascripts/services/context_menu.js
index 48a5ea37b..33cbb57cd 100644
--- a/src/public/javascripts/services/context_menu.js
+++ b/src/public/javascripts/services/context_menu.js
@@ -86,21 +86,21 @@ const contextMenuOptions = {
         {title: "----"},
         {title: "Edit branch prefix <kbd>F2</kbd>", cmd: "editBranchPrefix", uiIcon: "ui-icon-pencil"},
         {title: "----"},
-        {title: "Protect branch", cmd: "protectBranch", uiIcon: "ui-icon-locked"},
-        {title: "Unprotect branch", cmd: "unprotectBranch", uiIcon: "ui-icon-unlocked"},
+        {title: "Protect subtree", cmd: "protectSubtree", uiIcon: "ui-icon-locked"},
+        {title: "Unprotect subtree", cmd: "unprotectSubtree", uiIcon: "ui-icon-unlocked"},
         {title: "----"},
         {title: "Copy / clone <kbd>Ctrl+C</kbd>", cmd: "copy", uiIcon: "ui-icon-copy"},
         {title: "Cut <kbd>Ctrl+X</kbd>", cmd: "cut", uiIcon: "ui-icon-scissors"},
         {title: "Paste into <kbd>Ctrl+V</kbd>", cmd: "pasteInto", uiIcon: "ui-icon-clipboard"},
         {title: "Paste after", cmd: "pasteAfter", uiIcon: "ui-icon-clipboard"},
         {title: "----"},
-        {title: "Export subtree", cmd: "exportSubTree", uiIcon: " ui-icon-arrowthick-1-ne", children: [
-            {title: "Native&nbsp;Tar", cmd: "exportSubTreeToTar"},
-            {title: "OPML", cmd: "exportSubTreeToOpml"}
+        {title: "Export subtree", cmd: "exportSubtree", uiIcon: " ui-icon-arrowthick-1-ne", children: [
+            {title: "Native&nbsp;Tar", cmd: "exportSubtreeToTar"},
+            {title: "OPML", cmd: "exportSubtreeToOpml"}
         ]},
-        {title: "Import into branch (tar, opml)", cmd: "importBranch", uiIcon: "ui-icon-arrowthick-1-sw"},
+        {title: "Import into note (tar, opml)", cmd: "importIntoNote", uiIcon: "ui-icon-arrowthick-1-sw"},
         {title: "----"},
-        {title: "Collapse branch <kbd>Alt+-</kbd>", cmd: "collapseBranch", uiIcon: "ui-icon-minus"},
+        {title: "Collapse subtree <kbd>Alt+-</kbd>", cmd: "collapseSubtree", uiIcon: "ui-icon-minus"},
         {title: "Force note sync", cmd: "forceNoteSync", uiIcon: "ui-icon-refresh"},
         {title: "Sort alphabetically <kbd>Alt+S</kbd>", cmd: "sortAlphabetically", uiIcon: " ui-icon-arrowthick-2-n-s"}
     ],
@@ -119,8 +119,8 @@ const contextMenuOptions = {
         $tree.contextmenu("enableEntry", "cut", isNotRoot);
         $tree.contextmenu("enableEntry", "pasteAfter", clipboardIds.length > 0 && isNotRoot && parentNote.type !== 'search');
         $tree.contextmenu("enableEntry", "pasteInto", clipboardIds.length > 0 && note.type !== 'search');
-        $tree.contextmenu("enableEntry", "importBranch", note.type !== 'search');
-        $tree.contextmenu("enableEntry", "exportSubTree", note.type !== 'search');
+        $tree.contextmenu("enableEntry", "importIntoNote", note.type !== 'search');
+        $tree.contextmenu("enableEntry", "exportSubtree", note.type !== 'search');
         $tree.contextmenu("enableEntry", "editBranchPrefix", isNotRoot && parentNote.type !== 'search');
 
         // Activate node on right-click
@@ -145,11 +145,11 @@ const contextMenuOptions = {
         else if (ui.cmd === "editBranchPrefix") {
             branchPrefixDialog.showDialog(node);
         }
-        else if (ui.cmd === "protectBranch") {
-            protectedSessionService.protectBranch(node.data.noteId, true);
+        else if (ui.cmd === "protectSubtree") {
+            protectedSessionService.protectSubtree(node.data.noteId, true);
         }
-        else if (ui.cmd === "unprotectBranch") {
-            protectedSessionService.protectBranch(node.data.noteId, false);
+        else if (ui.cmd === "unprotectSubtree") {
+            protectedSessionService.protectSubtree(node.data.noteId, false);
         }
         else if (ui.cmd === "copy") {
             copy(treeService.getSelectedNodes());
@@ -166,16 +166,16 @@ const contextMenuOptions = {
         else if (ui.cmd === "delete") {
             treeChangesService.deleteNodes(treeService.getSelectedNodes(true));
         }
-        else if (ui.cmd === "exportSubTreeToTar") {
-            exportService.exportSubTree(node.data.noteId, 'tar');
+        else if (ui.cmd === "exportSubtreeToTar") {
+            exportService.exportSubtree(node.data.noteId, 'tar');
         }
-        else if (ui.cmd === "exportSubTreeToOpml") {
-            exportService.exportSubTree(node.data.noteId, 'opml');
+        else if (ui.cmd === "exportSubtreeToOpml") {
+            exportService.exportSubtree(node.data.noteId, 'opml');
         }
-        else if (ui.cmd === "importBranch") {
-            exportService.importBranch(node.data.noteId);
+        else if (ui.cmd === "importIntoNote") {
+            exportService.importIntoNote(node.data.noteId);
         }
-        else if (ui.cmd === "collapseBranch") {
+        else if (ui.cmd === "collapseSubtree") {
             treeService.collapseTree(node);
         }
         else if (ui.cmd === "forceNoteSync") {
diff --git a/src/public/javascripts/services/export.js b/src/public/javascripts/services/export.js
index 7111d1f5e..4357fd5e7 100644
--- a/src/public/javascripts/services/export.js
+++ b/src/public/javascripts/services/export.js
@@ -3,7 +3,7 @@ import protectedSessionHolder from './protected_session_holder.js';
 import utils from './utils.js';
 import server from './server.js';
 
-function exportSubTree(noteId, format) {
+function exportSubtree(noteId, format) {
     const url = utils.getHost() + "/api/notes/" + noteId + "/export/" + format +
         "?protectedSessionId=" + encodeURIComponent(protectedSessionHolder.getProtectedSessionId());
 
@@ -12,7 +12,7 @@ function exportSubTree(noteId, format) {
 
 let importNoteId;
 
-function importBranch(noteId) {
+function importIntoNote(noteId) {
     importNoteId = noteId;
 
     $("#import-upload").trigger('click');
@@ -35,6 +35,6 @@ $("#import-upload").change(async function() {
 });
 
 export default {
-    exportSubTree,
-    importBranch
+    exportSubtree,
+    importIntoNote
 };
\ No newline at end of file
diff --git a/src/public/javascripts/services/protected_session.js b/src/public/javascripts/services/protected_session.js
index d77f6bf30..60a91e65a 100644
--- a/src/public/javascripts/services/protected_session.js
+++ b/src/public/javascripts/services/protected_session.js
@@ -148,7 +148,7 @@ async function unprotectNoteAndSendToServer() {
     noteDetailService.setNoteBackgroundIfProtected(note);
 }
 
-async function protectBranch(noteId, protect) {
+async function protectSubtree(noteId, protect) {
     await ensureProtectedSession(true, true);
 
     await server.put('notes/' + noteId + "/protect/" + (protect ? 1 : 0));
@@ -172,7 +172,7 @@ export default {
     ensureProtectedSession,
     protectNoteAndSendToServer,
     unprotectNoteAndSendToServer,
-    protectBranch,
+    protectSubtree,
     ensureDialogIsClosed,
     enterProtectedSession,
     leaveProtectedSession
diff --git a/src/routes/api/notes.js b/src/routes/api/notes.js
index 1f4412f53..97cddb8bd 100644
--- a/src/routes/api/notes.js
+++ b/src/routes/api/notes.js
@@ -45,7 +45,7 @@ async function sortNotes(req) {
     await treeService.sortNotesAlphabetically(noteId);
 }
 
-async function protectBranch(req) {
+async function protectSubtree(req) {
     const noteId = req.params.noteId;
     const note = await repository.getNote(noteId);
     const protect = !!parseInt(req.params.isProtected);
@@ -70,6 +70,6 @@ module.exports = {
     updateNote,
     createNote,
     sortNotes,
-    protectBranch,
+    protectSubtree,
     setNoteTypeMime
 };
\ No newline at end of file
diff --git a/src/routes/routes.js b/src/routes/routes.js
index d12ef77b9..c3a9356e7 100644
--- a/src/routes/routes.js
+++ b/src/routes/routes.js
@@ -117,7 +117,7 @@ function register(app) {
     apiRoute(PUT, '/api/notes/:noteId', notesApiRoute.updateNote);
     apiRoute(POST, '/api/notes/:parentNoteId/children', notesApiRoute.createNote);
     apiRoute(PUT, '/api/notes/:noteId/sort', notesApiRoute.sortNotes);
-    apiRoute(PUT, '/api/notes/:noteId/protect/:isProtected', notesApiRoute.protectBranch);
+    apiRoute(PUT, '/api/notes/:noteId/protect/:isProtected', notesApiRoute.protectSubtree);
     apiRoute(PUT, /\/api\/notes\/(.*)\/type\/(.*)\/mime\/(.*)/, notesApiRoute.setNoteTypeMime);
     apiRoute(GET, '/api/notes/:noteId/revisions', noteRevisionsApiRoute.getNoteRevisions);
 
diff --git a/src/services/notes.js b/src/services/notes.js
index 7575184df..3b79712fa 100644
--- a/src/services/notes.js
+++ b/src/services/notes.js
@@ -193,14 +193,14 @@ async function saveNoteRevision(note) {
 
     const revisionCutoff = dateUtils.dateStr(new Date(now.getTime() - noteRevisionSnapshotTimeInterval * 1000));
 
-    const existingnoteRevisionId = await sql.getValue(
+    const existingNoteRevisionId = await sql.getValue(
         "SELECT noteRevisionId FROM note_revisions WHERE noteId = ? AND dateModifiedTo >= ?", [note.noteId, revisionCutoff]);
 
     const msSinceDateCreated = now.getTime() - dateUtils.parseDateTime(note.dateCreated).getTime();
 
     if (note.type !== 'file'
         && !await note.hasLabel('disableVersioning')
-        && !existingnoteRevisionId
+        && !existingNoteRevisionId
         && msSinceDateCreated >= noteRevisionSnapshotTimeInterval * 1000) {
 
         await new NoteRevision({
diff --git a/src/services/tree.js b/src/services/tree.js
index a8a9e282e..53515784b 100644
--- a/src/services/tree.js
+++ b/src/services/tree.js
@@ -34,17 +34,17 @@ async function getExistingBranch(parentNoteId, childNoteId) {
  * Tree cycle can be created when cloning or when moving existing clone. This method should detect both cases.
  */
 async function checkTreeCycle(parentNoteId, childNoteId) {
-    const subTreeNoteIds = [];
+    const subtreeNoteIds = [];
 
     // we'll load the whole sub tree - because the cycle can start in one of the notes in the sub tree
-    await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
+    await loadSubtreeNoteIds(childNoteId, subtreeNoteIds);
 
     async function checkTreeCycleInner(parentNoteId) {
         if (parentNoteId === 'root') {
             return true;
         }
 
-        if (subTreeNoteIds.includes(parentNoteId)) {
+        if (subtreeNoteIds.includes(parentNoteId)) {
             // while towards the root of the tree we encountered noteId which is already present in the subtree
             // joining parentNoteId with childNoteId would then clearly create a cycle
             return false;
@@ -68,13 +68,13 @@ async function getBranch(branchId) {
     return sql.getRow("SELECT * FROM branches WHERE branchId = ?", [branchId]);
 }
 
-async function loadSubTreeNoteIds(parentNoteId, subTreeNoteIds) {
-    subTreeNoteIds.push(parentNoteId);
+async function loadSubtreeNoteIds(parentNoteId, subtreeNoteIds) {
+    subtreeNoteIds.push(parentNoteId);
 
     const children = await sql.getColumn("SELECT noteId FROM branches WHERE parentNoteId = ? AND isDeleted = 0", [parentNoteId]);
 
     for (const childNoteId of children) {
-        await loadSubTreeNoteIds(childNoteId, subTreeNoteIds);
+        await loadSubtreeNoteIds(childNoteId, subtreeNoteIds);
     }
 }