diff --git a/public/pages/Indices/components/IndexControls/IndexControls.tsx b/public/pages/Indices/components/IndexControls/IndexControls.tsx
index 50323c89b..346c53343 100644
--- a/public/pages/Indices/components/IndexControls/IndexControls.tsx
+++ b/public/pages/Indices/components/IndexControls/IndexControls.tsx
@@ -76,7 +76,7 @@ export default class IndexControls extends Component<IndexControlsProps, IndexCo
         </EuiFlexItem>
         <EuiFlexItem grow={false}>
           <EuiSwitch
-            label="Show data stream indices"
+            label="Show data stream indexes"
             checked={showDataStreams}
             onChange={toggleShowDataStreams}
             data-test-subj="toggleShowDataStreams"
diff --git a/public/pages/Indices/containers/Indices/Indices.tsx b/public/pages/Indices/containers/Indices/Indices.tsx
index 2d882693e..95adba12e 100644
--- a/public/pages/Indices/containers/Indices/Indices.tsx
+++ b/public/pages/Indices/containers/Indices/Indices.tsx
@@ -269,7 +269,7 @@ export default class Indices extends Component<IndicesProps, IndicesState> {
           />
         }
         bodyStyles={{ padding: "initial" }}
-        title="Indices"
+        title="Indexes"
         itemCount={totalIndices}
       >
         <IndexControls
diff --git a/public/pages/Main/Main.tsx b/public/pages/Main/Main.tsx
index af07627e6..f078730a6 100644
--- a/public/pages/Main/Main.tsx
+++ b/public/pages/Main/Main.tsx
@@ -52,8 +52,8 @@ import CreateComposableTemplate from "../CreateComposableTemplate";
 enum Navigation {
   IndexManagement = "Index Management",
   IndexPolicies = "State management policies",
-  ManagedIndices = "Policy managed indices",
-  Indices = "Indices",
+  ManagedIndices = "Policy managed indexes",
+  Indices = "Indexes",
   Rollups = "Rollup jobs",
   Transforms = "Transform jobs",
   SnapshotManagement = "Snapshot Management",
diff --git a/public/pages/ManagedIndices/components/ManagedIndexControls/ManagedIndexControls.tsx b/public/pages/ManagedIndices/components/ManagedIndexControls/ManagedIndexControls.tsx
index 245cd8645..2c444326d 100644
--- a/public/pages/ManagedIndices/components/ManagedIndexControls/ManagedIndexControls.tsx
+++ b/public/pages/ManagedIndices/components/ManagedIndexControls/ManagedIndexControls.tsx
@@ -71,7 +71,7 @@ export default class ManagedIndexControls extends Component<ManagedIndexControls
         </EuiFlexItem>
         <EuiFlexItem grow={false}>
           <EuiSwitch
-            label="Show data stream indices"
+            label="Show data stream indexes"
             checked={showDataStreams}
             onChange={toggleShowDataStreams}
             data-test-subj="toggleShowDataStreams"
diff --git a/public/pages/ManagedIndices/components/ManagedIndexEmptyPrompt/ManagedIndexEmptyPrompt.tsx b/public/pages/ManagedIndices/components/ManagedIndexEmptyPrompt/ManagedIndexEmptyPrompt.tsx
index e06b5e20d..0d9eb8b5a 100644
--- a/public/pages/ManagedIndices/components/ManagedIndexEmptyPrompt/ManagedIndexEmptyPrompt.tsx
+++ b/public/pages/ManagedIndices/components/ManagedIndexEmptyPrompt/ManagedIndexEmptyPrompt.tsx
@@ -11,9 +11,9 @@ import CreatePolicyModal from "../../../../components/CreatePolicyModal";
 import { ROUTES } from "../../../../utils/constants";
 
 export const TEXT = {
-  RESET_FILTERS: "There are no managed indices matching your applied filters. Reset your filters to view your managed indices.",
-  NO_MANAGED_INDICES: "There are no existing managed indices. Create a policy to add to an index.",
-  LOADING: "Loading managed indices...",
+  RESET_FILTERS: "There are no managed indexes matching your applied filters. Reset your filters to view your managed indexes.",
+  NO_MANAGED_INDICES: "There are no existing managed indexes. Create a policy to add to an index.",
+  LOADING: "Loading managed indexes...",
 };
 
 const getMessagePrompt = ({ filterIsApplied, loading }: ManagedIndexEmptyPromptProps): string => {
diff --git a/public/pages/ManagedIndices/containers/ManagedIndices/ManagedIndices.tsx b/public/pages/ManagedIndices/containers/ManagedIndices/ManagedIndices.tsx
index 260104748..f393d6168 100644
--- a/public/pages/ManagedIndices/containers/ManagedIndices/ManagedIndices.tsx
+++ b/public/pages/ManagedIndices/containers/ManagedIndices/ManagedIndices.tsx
@@ -246,7 +246,7 @@ export default class ManagedIndices extends Component<ManagedIndicesProps, Manag
         this.context.notifications.toasts.addDanger(getManagedIndicesResponse.error);
       }
     } catch (err) {
-      this.context.notifications.toasts.addDanger(getErrorMessage(err, "There was a problem loading the managed indices"));
+      this.context.notifications.toasts.addDanger(getErrorMessage(err, "There was a problem loading the managed indexes"));
     }
 
     // Avoiding flicker by showing/hiding the "Data stream" column only after the results are loaded.
@@ -288,7 +288,7 @@ export default class ManagedIndices extends Component<ManagedIndicesProps, Manag
       if (removePolicyResponse.ok) {
         const { updatedIndices, failedIndices, failures } = removePolicyResponse.response;
         if (updatedIndices) {
-          this.context.notifications.toasts.addSuccess(`Removed policy from ${updatedIndices} managed indices`);
+          this.context.notifications.toasts.addSuccess(`Removed policy from ${updatedIndices} managed indexes`);
         }
         if (failures) {
           this.context.notifications.toasts.addDanger(
@@ -399,10 +399,10 @@ export default class ManagedIndices extends Component<ManagedIndicesProps, Manag
           onClickModal: (onShow: (component: any, props: object) => void) => () =>
             onShow(ConfirmationModal, {
               title: `Remove ${
-                selectedItems.length === 1 ? `policy from ${selectedItems[0].index}` : `policies from ${selectedItems.length} indices`
+                selectedItems.length === 1 ? `policy from ${selectedItems[0].index}` : `policies from ${selectedItems.length} indexes`
               }`,
               bodyMessage: `Remove ${
-                selectedItems.length === 1 ? `policy from ${selectedItems[0].index}` : `policies from ${selectedItems.length} indices`
+                selectedItems.length === 1 ? `policy from ${selectedItems[0].index}` : `policies from ${selectedItems.length} indexes`
               } permanently? This action cannot be undone.`,
               actionMessage: "Remove",
               onAction: () => this.onClickRemovePolicy(selectedItems.map((item) => item.index)),
@@ -442,7 +442,7 @@ export default class ManagedIndices extends Component<ManagedIndicesProps, Manag
         <ContentPanel
           actions={<ContentPanelActions actions={actions} />}
           bodyStyles={{ padding: "initial" }}
-          title="Policy managed indices"
+          title="Policy managed indexes"
           itemCount={totalManagedIndices}
         >
           <ManagedIndexControls