diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
index fbfc17ba6d1885..4f2b594755262f 100644
--- a/lib/internal/modules/cjs/loader.js
+++ b/lib/internal/modules/cjs/loader.js
@@ -913,7 +913,7 @@ Module._resolveFilename = function(request, parent, isMain, options) {
     }
   }
 
-  // Try module self resoultion first
+  // Try module self resolution first
   const parentPath = trySelfParentPath(parent);
   const selfResolved = trySelf(parentPath, request);
   if (selfResolved) {
diff --git a/lib/internal/util.js b/lib/internal/util.js
index f77f1fc43368c4..f0a04f61818392 100644
--- a/lib/internal/util.js
+++ b/lib/internal/util.js
@@ -349,7 +349,7 @@ function promisify(original) {
 
 promisify.custom = kCustomPromisifiedSymbol;
 
-// The build-in Array#join is slower in v8 6.0
+// The built-in Array#join is slower in v8 6.0
 function join(output, separator) {
   let str = '';
   if (output.length !== 0) {
diff --git a/lib/internal/util/comparisons.js b/lib/internal/util/comparisons.js
index 729012d8ccb944..95515fb78ace0d 100644
--- a/lib/internal/util/comparisons.js
+++ b/lib/internal/util/comparisons.js
@@ -427,9 +427,9 @@ function setEquiv(a, b, strict, memo) {
       if (set === null) {
         set = new SafeSet();
       }
-      // If the specified value doesn't exist in the second set its an not null
+      // If the specified value doesn't exist in the second set it's a non-null
       // object (or non strict only: a not matching primitive) we'll need to go
-      // hunting for something thats deep-(strict-)equal to it. To make this
+      // hunting for something that's deep-(strict-)equal to it. To make this
       // O(n log n) complexity we have to copy these values in a new set first.
       set.add(val);
     } else if (!b.has(val)) {
diff --git a/lib/internal/util/inspect.js b/lib/internal/util/inspect.js
index 62746517729a2e..6f8eb710a9255f 100644
--- a/lib/internal/util/inspect.js
+++ b/lib/internal/util/inspect.js
@@ -361,7 +361,7 @@ inspect.colors = ObjectAssign(ObjectCreate(null), {
   italic: [3, 23],
   underline: [4, 24],
   blink: [5, 25],
-  // Swap forground and background colors
+  // Swap foreground and background colors
   inverse: [7, 27], // Alias: swapcolors, swapColors
   hidden: [8, 28], // Alias: conceal
   strikethrough: [9, 29], // Alias: strikeThrough, crossedout, crossedOut