diff --git a/docs/_css/bourbon/helpers/_linear-positions-parser.scss b/docs/_css/bourbon/helpers/_linear-positions-parser.scss
index d26383edce..9d619301ef 100644
--- a/docs/_css/bourbon/helpers/_linear-positions-parser.scss
+++ b/docs/_css/bourbon/helpers/_linear-positions-parser.scss
@@ -11,7 +11,7 @@
       $side: nth($pos, 2);
 
       @if $length == 2 { // eg. to top
-        // Swap for backwards compatability
+        // Swap for backwards compatibility
         $degree: _position-flipper(nth($pos, 2));
       }
       @else if $length == 3 { // eg. to top left
@@ -38,7 +38,7 @@
     $spec: to $side $corner;
   }
   @else if $length == 1 {
-    // Swap for backwards compatability
+    // Swap for backwards compatibility
     @if $type == string {
       $degree: $pos;
       $spec: to _position-flipper($pos);
diff --git a/fixtures/dom/public/react-loader.js b/fixtures/dom/public/react-loader.js
index f9f3c4d419..f738275848 100644
--- a/fixtures/dom/public/react-loader.js
+++ b/fixtures/dom/public/react-loader.js
@@ -38,6 +38,6 @@ document.write('<script src="' + REACT_PATH + '"></script>');
 if (version === 'local' || parseFloat(version, 10) > 0.13) {
   document.write('<script src="' + DOM_PATH + '"></script>');
 } else {
-  // Aliasing React to ReactDOM for compatability.
+  // Aliasing React to ReactDOM for compatibility.
   document.write('<script>ReactDOM = React</script>');
 }
diff --git a/scripts/error-codes/__tests__/invertObject-test.js b/scripts/error-codes/__tests__/invertObject-test.js
index 1b8c35c6fe..dff7c25035 100644
--- a/scripts/error-codes/__tests__/invertObject-test.js
+++ b/scripts/error-codes/__tests__/invertObject-test.js
@@ -38,7 +38,7 @@ describe('invertObject', () => {
     });
   });
 
-  it('should perserve the original order', () => {
+  it('should preserve the original order', () => {
     expect(Object.keys(invertObject({
       a: '3',
       b: '4',
diff --git a/scripts/fiber/tests-passing.txt b/scripts/fiber/tests-passing.txt
index fa094df4a3..31a56f4890 100644
--- a/scripts/fiber/tests-passing.txt
+++ b/scripts/fiber/tests-passing.txt
@@ -32,7 +32,7 @@ scripts/error-codes/__tests__/invertObject-test.js
 * should return an empty object for an empty input
 * should invert key-values
 * should take the last value when there're duplications in vals
-* should perserve the original order
+* should preserve the original order
 
 src/addons/__tests__/ReactComponentWithPureRenderMixin-test.js
 * provides a default shouldComponentUpdate implementation
diff --git a/src/renderers/dom/fiber/ReactDOMFiberComponent.js b/src/renderers/dom/fiber/ReactDOMFiberComponent.js
index 3dd082083c..a3384446f4 100644
--- a/src/renderers/dom/fiber/ReactDOMFiberComponent.js
+++ b/src/renderers/dom/fiber/ReactDOMFiberComponent.js
@@ -479,7 +479,7 @@ var ReactDOMFiberComponent = {
       } else if (props.is) {
         domElement = ownerDocument.createElement(type, props.is);
       } else {
-        // Separate else branch instead of using `props.is || undefined` above becuase of a Firefox bug.
+        // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
         // See discussion in https://github.com/facebook/react/pull/6896
         // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
         domElement = ownerDocument.createElement(type);
diff --git a/src/renderers/dom/stack/client/ReactDOMComponent.js b/src/renderers/dom/stack/client/ReactDOMComponent.js
index 26a574851a..ccf746daee 100644
--- a/src/renderers/dom/stack/client/ReactDOMComponent.js
+++ b/src/renderers/dom/stack/client/ReactDOMComponent.js
@@ -578,7 +578,7 @@ ReactDOMComponent.Mixin = {
         } else if (props.is) {
           el = ownerDocument.createElement(type, props.is);
         } else {
-          // Separate else branch instead of using `props.is || undefined` above becuase of a Firefox bug.
+          // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
           // See discussion in https://github.com/facebook/react/pull/6896
           // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
           el = ownerDocument.createElement(type);
diff --git a/src/renderers/native/ReactNativeAttributePayload.js b/src/renderers/native/ReactNativeAttributePayload.js
index 6c6e4f9da2..c84d7284ab 100644
--- a/src/renderers/native/ReactNativeAttributePayload.js
+++ b/src/renderers/native/ReactNativeAttributePayload.js
@@ -332,7 +332,7 @@ function diffProperties(
     }
 
     // An explicit value of undefined is treated as a null because it overrides
-    // any other preceeding value.
+    // any other preceding value.
     if (typeof nextProp === 'undefined') {
       nextProp = (null : any);
       if (typeof prevProp === 'undefined') {
diff --git a/src/renderers/native/ReactNativeEventEmitter.js b/src/renderers/native/ReactNativeEventEmitter.js
index 6100bee894..72ff28d6ab 100644
--- a/src/renderers/native/ReactNativeEventEmitter.js
+++ b/src/renderers/native/ReactNativeEventEmitter.js
@@ -189,7 +189,7 @@ var ReactNativeEventEmitter = {
           if (__DEV__) {
             warning(
               false,
-              'A view is reporting that a touch occured on tag zero.'
+              'A view is reporting that a touch occurred on tag zero.'
             );
           }
         } else {
diff --git a/src/renderers/shared/fiber/ReactFiberScheduler.js b/src/renderers/shared/fiber/ReactFiberScheduler.js
index e88126f696..f3040a58df 100644
--- a/src/renderers/shared/fiber/ReactFiberScheduler.js
+++ b/src/renderers/shared/fiber/ReactFiberScheduler.js
@@ -231,7 +231,7 @@ module.exports = function<T, P, I, TI, PI, C, CX, PL>(config : HostConfig<T, P,
 
       // Before we start any new work, let's make sure that we have a fresh
       // stack to work from.
-      // TODO: This call is burried a bit too deep. It would be nice to have
+      // TODO: This call is buried a bit too deep. It would be nice to have
       // a single point which happens right before any new work and
       // unfortunately this is it.
       resetContextStack();
@@ -629,7 +629,7 @@ module.exports = function<T, P, I, TI, PI, C, CX, PL>(config : HostConfig<T, P,
         nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
       }
       if (nextUnitOfWork === null) {
-        // If performUnitOfWork returns null, that means we just comitted
+        // If performUnitOfWork returns null, that means we just committed
         // a root. Normally we'd need to clear any errors that were scheduled
         // during the commit phase. But we're already clearing errors, so
         // we can continue.
@@ -696,7 +696,7 @@ module.exports = function<T, P, I, TI, PI, C, CX, PL>(config : HostConfig<T, P,
         nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
         if (nextUnitOfWork === null) {
           nextUnitOfWork = findNextUnitOfWork();
-          // performUnitOfWork returned null, which means we just comitted a
+          // performUnitOfWork returned null, which means we just committed a
           // root. Clear any errors that were scheduled during the commit phase.
           clearErrors();
         }
@@ -746,8 +746,9 @@ module.exports = function<T, P, I, TI, PI, C, CX, PL>(config : HostConfig<T, P,
       } catch (error) {
         // We caught an error during either the begin or complete phases.
         const failedWork = nextUnitOfWork;
+        
         if (failedWork !== null) {
-          // Reset the priority context to its value before reconcilation.
+          // Reset the priority context to its value before reconciliation.
           priorityContext = priorityContextBeforeReconciliation;
 
           // "Capture" the error by finding the nearest boundary. If there is no
diff --git a/src/renderers/shared/fiber/ReactFiberUpdateQueue.js b/src/renderers/shared/fiber/ReactFiberUpdateQueue.js
index 93279e8e16..f07fec3f46 100644
--- a/src/renderers/shared/fiber/ReactFiberUpdateQueue.js
+++ b/src/renderers/shared/fiber/ReactFiberUpdateQueue.js
@@ -210,7 +210,7 @@ function findInsertionPosition(queue, update) : Update | null {
 // To solve this, in the case where the incoming update needs to be inserted
 // into two different positions, we'll make a clone of the update and insert
 // each copy into a separate queue. This forks the list while maintaining a
-// persistent stucture, because the update that is added to the work-in-progress
+// persistent structure, because the update that is added to the work-in-progress
 // is always added to the front of the list.
 //
 // However, if incoming update is inserted into the same position of both lists,
diff --git a/src/renderers/shared/fiber/__tests__/ReactIncremental-test.js b/src/renderers/shared/fiber/__tests__/ReactIncremental-test.js
index d174efd221..96407cf289 100644
--- a/src/renderers/shared/fiber/__tests__/ReactIncremental-test.js
+++ b/src/renderers/shared/fiber/__tests__/ReactIncremental-test.js
@@ -502,7 +502,7 @@ describe('ReactIncremental', () => {
 
     ops = [];
 
-    // Interupt the rendering with a quick update. This should not touch the
+    // Interrupt the rendering with a quick update. This should not touch the
     // middle content.
     ReactNoop.render(<Foo text="foo" text2="bar" step={0} />);
     ReactNoop.flush();
@@ -528,7 +528,7 @@ describe('ReactIncremental', () => {
 
     ops = [];
 
-    // but we'll interupt it to render some higher priority work.
+    // but we'll interrupt it to render some higher priority work.
     // The middle content will bailout so it remains untouched.
     ReactNoop.render(<Foo text="foo" text2="bar" step={1} />);
     ReactNoop.flushDeferredPri(30);
@@ -694,7 +694,7 @@ describe('ReactIncremental', () => {
 
     ops = [];
 
-    // but we'll interupt it to render some higher priority work.
+    // but we'll interrupt it to render some higher priority work.
     // The middle content will bailout so it remains untouched.
     ReactNoop.render(<Foo text="foo" step={1} />);
     ReactNoop.flushDeferredPri(30);
diff --git a/src/renderers/shared/fiber/__tests__/ReactIncrementalSideEffects-test.js b/src/renderers/shared/fiber/__tests__/ReactIncrementalSideEffects-test.js
index 3a128b6065..b6c24ccbe6 100644
--- a/src/renderers/shared/fiber/__tests__/ReactIncrementalSideEffects-test.js
+++ b/src/renderers/shared/fiber/__tests__/ReactIncrementalSideEffects-test.js
@@ -406,7 +406,7 @@ describe('ReactIncrementalSideEffects', () => {
       div(div(span('Hi'), span('foo'))),
     ]);
 
-    // The first Bar has already completed its update but we'll interupt it to
+    // The first Bar has already completed its update but we'll interrupt it to
     // render some higher priority work. The middle content will bailout so
     // it remains untouched which means that it should reuse it next time.
     ReactNoop.render(<Foo text="foo" step={1} />);
@@ -472,7 +472,7 @@ describe('ReactIncrementalSideEffects', () => {
       div(div(span('Hi'), span('foo'))),
     ]);
 
-    // The first Bar has already completed its update but we'll interupt it to
+    // The first Bar has already completed its update but we'll interrupt it to
     // render some higher priority work. The middle content will bailout so
     // it remains untouched which means that it should reuse it next time.
     ReactNoop.render(<Foo text="foo" step={1} />);