diff --git a/superset/assets/src/components/FilterableTable/FilterableTable.jsx b/superset/assets/src/components/FilterableTable/FilterableTable.jsx
index e54a6fc4fd..307d97c3d5 100644
--- a/superset/assets/src/components/FilterableTable/FilterableTable.jsx
+++ b/superset/assets/src/components/FilterableTable/FilterableTable.jsx
@@ -72,7 +72,7 @@ export default class FilterableTable extends PureComponent {
   fitTableToWidthIfNeeded() {
     const containerWidth = this.container.getBoundingClientRect().width;
     if (containerWidth > this.totalTableWidth) {
-      this.totalTableWidth = containerWidth - 2; // accomodates 1px border on container
+      this.totalTableWidth = containerWidth - 2; // accommodates 1px border on container
     }
     this.setState({ fitted: true });
   }
diff --git a/superset/assets/src/explore/controls.jsx b/superset/assets/src/explore/controls.jsx
index 905a3de200..d5d94fd534 100644
--- a/superset/assets/src/explore/controls.jsx
+++ b/superset/assets/src/explore/controls.jsx
@@ -3,7 +3,7 @@
  *
  * While the React components located in `controls/components` represent different
  * types of controls (CheckboxControl, SelectControl, TextControl, ...), the controls here
- * represent instances of control types, that can be reused across visualisation types.
+ * represent instances of control types, that can be reused across visualization types.
  *
  * When controls are reused across viz types, their values are carried over as a user
  * changes the chart types.
diff --git a/superset/cli.py b/superset/cli.py
index a304664f8e..fc2f7510bc 100755
--- a/superset/cli.py
+++ b/superset/cli.py
@@ -236,7 +236,7 @@ def refresh_druid(datasource, merge):
          'files to import (*.yaml or *.yml)')
 @manager.option(
     '-s', '--sync', dest='sync', default='',
-    help='comma seperated list of element types to synchronize '
+    help='comma separated list of element types to synchronize '
          'e.g. "metrics,columns" deletes metrics and columns in the DB '
          'that are not specified in the YAML file')
 @manager.option(