diff --git a/client/src/app/site/modules/global-headbar/components/global-headbar/global-headbar.component.html b/client/src/app/site/modules/global-headbar/components/global-headbar/global-headbar.component.html
index 9248e5fbb1..784ca49d2d 100644
--- a/client/src/app/site/modules/global-headbar/components/global-headbar/global-headbar.component.html
+++ b/client/src/app/site/modules/global-headbar/components/global-headbar/global-headbar.component.html
@@ -1,7 +1,7 @@
 <mat-toolbar class="global-headbar background-headbar">
     @if (showCommitteeLink) {
         <a aria-label="Committee" class="adjust-icon" mat-icon-button role="button" [routerLink]="committeeLink">
-            <mat-icon>layers</mat-icon>
+            <mat-icon [matTooltip]="'Go to committee' | translate">layers</mat-icon>
         </a>
     }
     <div class="one-line display-name">
@@ -17,7 +17,7 @@
                 [attr.aria-label]="'Global search' | translate"
                 (click)="openSearch()"
             >
-                <mat-icon>search</mat-icon>
+                <mat-icon [matTooltip]="'Global search' | translate">search</mat-icon>
             </button>
         }
         <!-- Button to view the own account -->
diff --git a/client/src/app/site/pages/meetings/pages/motions/pages/motion-blocks/components/motion-block-list/motion-block-list.component.html b/client/src/app/site/pages/meetings/pages/motions/pages/motion-blocks/components/motion-block-list/motion-block-list.component.html
index 9d0c7fb958..bacdca4dd9 100644
--- a/client/src/app/site/pages/meetings/pages/motions/pages/motion-blocks/components/motion-block-list/motion-block-list.component.html
+++ b/client/src/app/site/pages/meetings/pages/motions/pages/motion-blocks/components/motion-block-list/motion-block-list.component.html
@@ -52,7 +52,7 @@ <h1 class="mock-h2" translate>Motion blocks</h1>
 
     <!-- Amount -->
     <div *osScrollingTableCell="'amount'; row as block; config: { width: 60 }" class="cell-slot fill">
-        <span class="os-amount-chip" matTooltip="{{ 'Motions' | translate }}" matTooltipPosition="left">
+        <span class="os-amount-chip" matTooltip="{{ 'Motions' | translate }}">
             {{ getMotionAmount(block) }}
         </span>
     </div>
diff --git a/client/src/app/site/pages/meetings/pages/motions/pages/tags/components/tag-list/tag-list.component.html b/client/src/app/site/pages/meetings/pages/motions/pages/tags/components/tag-list/tag-list.component.html
index 11d58afb41..a9785353ec 100644
--- a/client/src/app/site/pages/meetings/pages/motions/pages/tags/components/tag-list/tag-list.component.html
+++ b/client/src/app/site/pages/meetings/pages/motions/pages/tags/components/tag-list/tag-list.component.html
@@ -27,13 +27,13 @@ <h1 class="mock-h2" translate>Tags</h1>
     <!-- edit column -->
     <div *osScrollingTableCell="'edit'; row as tag; config: { width: 45 }" class="cell-slot fill">
         <button mat-icon-button (click)="openTagDialog(tag)">
-            <mat-icon>edit</mat-icon>
+            <mat-icon [matTooltip]="'Edit' | translate">edit</mat-icon>
         </button>
     </div>
     <!-- delete column -->
     <div *osScrollingTableCell="'delete'; row as tag; config: { width: 45 }" class="cell-slot fill">
         <button color="warn" mat-icon-button (click)="onDeleteButton(tag)">
-            <mat-icon>delete</mat-icon>
+            <mat-icon [matTooltip]="'Delete' | translate">delete</mat-icon>
         </button>
     </div>
 </os-list>
diff --git a/client/src/app/site/pages/meetings/pages/motions/pages/tags/tags.module.ts b/client/src/app/site/pages/meetings/pages/motions/pages/tags/tags.module.ts
index c88de563e9..6acb7cf48c 100644
--- a/client/src/app/site/pages/meetings/pages/motions/pages/tags/tags.module.ts
+++ b/client/src/app/site/pages/meetings/pages/motions/pages/tags/tags.module.ts
@@ -6,6 +6,7 @@ import { MatDialogModule } from '@angular/material/dialog';
 import { MatFormFieldModule } from '@angular/material/form-field';
 import { MatIconModule } from '@angular/material/icon';
 import { MatInputModule } from '@angular/material/input';
+import { MatTooltipModule } from '@angular/material/tooltip';
 import { OpenSlidesTranslationModule } from '@app/site/modules/translations';
 import { HeadBarModule } from '@app/ui/modules/head-bar';
 import { ListModule } from '@app/ui/modules/list';
@@ -23,6 +24,7 @@ import { TagsRoutingModule } from './tags-routing.module';
         MatButtonModule,
         MatInputModule,
         MatDialogModule,
+        MatTooltipModule,
         ReactiveFormsModule,
         HeadBarModule,
         ListModule,
diff --git a/client/src/app/site/pages/meetings/pages/projectors/modules/projector-list/components/projector-list-entry/projector-list-entry.component.html b/client/src/app/site/pages/meetings/pages/projectors/modules/projector-list/components/projector-list-entry/projector-list-entry.component.html
index 36ba7891d3..36ed6d6265 100644
--- a/client/src/app/site/pages/meetings/pages/projectors/modules/projector-list/components/projector-list-entry/projector-list-entry.component.html
+++ b/client/src/app/site/pages/meetings/pages/projectors/modules/projector-list/components/projector-list-entry/projector-list-entry.component.html
@@ -16,7 +16,10 @@
         <ng-container *osPerms="permission.projectorCanManage" class="meta-text-block-action-row">
             <button
                 mat-icon-button
-                matTooltip="{{ 'Sets this projector as the reference for the current list of speakers' | translate }}"
+                matTooltip="{{
+                    'Sets this projector as the reference for the autopilot and the current list of speakers'
+                        | translate
+                }}"
                 (click)="setProjectorAsReference()"
             >
                 @if (projector.isReferenceProjector) {
@@ -26,7 +29,7 @@
                     <mat-icon class="grey-icon">star_border</mat-icon>
                 }
             </button>
-            <button mat-icon-button matTooltip="{{ 'Open projector' | translate }}">
+            <button mat-icon-button matTooltip="{{ 'Open projector in new tab' | translate }}">
                 <a target="_blank" [routerLink]="getFullScreenLink()">
                     <mat-icon class="grey-icon">slideshow</mat-icon>
                 </a>
diff --git a/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/components/organization-tag-list/organization-tag-list.component.html b/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/components/organization-tag-list/organization-tag-list.component.html
index 894b37ecdc..a492b8cc5c 100644
--- a/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/components/organization-tag-list/organization-tag-list.component.html
+++ b/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/components/organization-tag-list/organization-tag-list.component.html
@@ -42,12 +42,12 @@ <h1 class="mock-h2" translate>Tags</h1>
     @if (isOrgaManager) {
         <div *osScrollingTableCell="'edit'; row as orgaTag; config: { width: 40 }" class="cell-slot fill">
             <button mat-icon-button (click)="editOrganizationTag(orgaTag)">
-                <mat-icon>edit</mat-icon>
+                <mat-icon [matTooltip]="'Edit' | translate">edit</mat-icon>
             </button>
         </div>
         <div *osScrollingTableCell="'delete'; row as orgaTag; config: { width: 40 }" class="cell-slot fill">
             <button color="warn" mat-icon-button (click)="deleteOrganizationTags(orgaTag)">
-                <mat-icon>delete</mat-icon>
+                <mat-icon [matTooltip]="'Delete' | translate">delete</mat-icon>
             </button>
         </div>
     }
diff --git a/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/organization-tag-list.module.ts b/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/organization-tag-list.module.ts
index 6fecb178a8..677432537e 100644
--- a/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/organization-tag-list.module.ts
+++ b/client/src/app/site/pages/organization/pages/organization-tags/pages/organization-tag-list/organization-tag-list.module.ts
@@ -4,6 +4,7 @@ import { MatButtonModule } from '@angular/material/button';
 import { MatDividerModule } from '@angular/material/divider';
 import { MatIconModule } from '@angular/material/icon';
 import { MatMenuModule } from '@angular/material/menu';
+import { MatTooltipModule } from '@angular/material/tooltip';
 import { OpenSlidesTranslationModule } from '@app/site/modules/translations';
 import { ChipComponent } from '@app/ui/modules/chip';
 import { HeadBarModule } from '@app/ui/modules/head-bar/head-bar.module';
@@ -26,6 +27,7 @@ import { OrganizationTagListRoutingModule } from './organization-tag-list-routin
         MatIconModule,
         MatMenuModule,
         MatButtonModule,
+        MatTooltipModule,
         MatDividerModule
     ]
 })