diff --git a/packages/react-reconciler/src/ReactFiberCommitWork.js b/packages/react-reconciler/src/ReactFiberCommitWork.js
index 16653ea928..42aa93a356 100644
--- a/packages/react-reconciler/src/ReactFiberCommitWork.js
+++ b/packages/react-reconciler/src/ReactFiberCommitWork.js
@@ -117,7 +117,7 @@ export function logError(boundary: Fiber, errorInfo: CapturedValue<mixed>) {
     const suppressLogging = e && e.suppressReactErrorLogging;
     if (!suppressLogging) {
       // Rethrow it from a clean stack because this function is assumed to never throw.
-      // We can't safely call console.error() here because it could *also* throw if overriden.
+      // We can't safely call console.error() here because it could *also* throw if overridden.
       // https://github.com/facebook/react/issues/13188
       setTimeout(() => {
         throw e;
diff --git a/packages/react-reconciler/src/ReactFiberScheduler.js b/packages/react-reconciler/src/ReactFiberScheduler.js
index fe02ee21f5..219184170e 100644
--- a/packages/react-reconciler/src/ReactFiberScheduler.js
+++ b/packages/react-reconciler/src/ReactFiberScheduler.js
@@ -1250,7 +1250,7 @@ function renderRoot(
     let msUntilTimeout = nextLatestAbsoluteTimeoutMs - currentTimeMs;
     msUntilTimeout = msUntilTimeout < 0 ? 0 : msUntilTimeout;
 
-    // TODO: Account for the Just Noticable Difference
+    // TODO: Account for the Just Noticeable Difference
 
     const rootExpirationTime = root.expirationTime;
     onSuspend(
diff --git a/packages/react-reconciler/src/ReactFiberUnwindWork.js b/packages/react-reconciler/src/ReactFiberUnwindWork.js
index 35042016f3..1fd1d4fe0e 100644
--- a/packages/react-reconciler/src/ReactFiberUnwindWork.js
+++ b/packages/react-reconciler/src/ReactFiberUnwindWork.js
@@ -286,8 +286,8 @@ function throwException(
               // time. First, find the earliest uncommitted expiration time in the
               // tree, including work that is suspended. Then subtract the offset
               // used to compute an async update's expiration time. This will cause
-              // high priority (interactive) work to expire earlier than neccessary,
-              // but we can account for this by adjusting for the Just Noticable
+              // high priority (interactive) work to expire earlier than necessary,
+              // but we can account for this by adjusting for the Just Noticeable
               // Difference.
               const earliestExpirationTime = findEarliestOutstandingPriorityLevel(
                 root,
diff --git a/packages/react-reconciler/src/__tests__/ReactIncrementalErrorReplay-test.internal.js b/packages/react-reconciler/src/__tests__/ReactIncrementalErrorReplay-test.internal.js
index 6c97c46b82..477ce71a74 100644
--- a/packages/react-reconciler/src/__tests__/ReactIncrementalErrorReplay-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/ReactIncrementalErrorReplay-test.internal.js
@@ -14,7 +14,7 @@ describe('ReactIncrementalErrorReplay-test', () => {
     // Note: this test is fragile and relies on internals.
     // We almost always try to avoid such tests, but here the cost of
     // the list getting out of sync (and causing subtle bugs in rare cases)
-    // is higher than the cost of maintaing the test.
+    // is higher than the cost of maintaining the test.
     const {
       // Any Fiber factory function will do.
       createHostRootFiber,