diff --git a/src/main/java/org/apache/commons/lang3/ArrayUtils.java b/src/main/java/org/apache/commons/lang3/ArrayUtils.java
index d99ae5925..adc3fd29d 100644
--- a/src/main/java/org/apache/commons/lang3/ArrayUtils.java
+++ b/src/main/java/org/apache/commons/lang3/ArrayUtils.java
@@ -136,7 +136,7 @@ public class ArrayUtils {
     }
 
 
-    // N.B. Cannot use {@code} to enclose text which includes {}, but <code></code> is OK
+    // NOTE: Cannot use {@code} to enclose text which includes {}, but <code></code> is OK
 
 
     // Basic methods handling multi-dimensional arrays
diff --git a/src/main/java/org/apache/commons/lang3/builder/EqualsBuilder.java b/src/main/java/org/apache/commons/lang3/builder/EqualsBuilder.java
index b2b9bd827..d40e1e28b 100644
--- a/src/main/java/org/apache/commons/lang3/builder/EqualsBuilder.java
+++ b/src/main/java/org/apache/commons/lang3/builder/EqualsBuilder.java
@@ -92,7 +92,7 @@ public class EqualsBuilder implements Builder<Boolean> {
     private static final ThreadLocal<Set<Pair<IDKey, IDKey>>> REGISTRY = new ThreadLocal<Set<Pair<IDKey, IDKey>>>();
 
     /*
-     * N.B. we cannot store the actual objects in a HashSet, as that would use the very hashCode()
+     * NOTE: we cannot store the actual objects in a HashSet, as that would use the very hashCode()
      * we are in the process of calculating.
      *
      * So we generate a one-to-one mapping from the original object to a new object.
diff --git a/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java b/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
index 21051d29a..e726bb3c1 100644
--- a/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
+++ b/src/main/java/org/apache/commons/lang3/builder/HashCodeBuilder.java
@@ -108,7 +108,7 @@ public class HashCodeBuilder implements Builder<Integer> {
     private static final ThreadLocal<Set<IDKey>> REGISTRY = new ThreadLocal<Set<IDKey>>();
 
     /*
-     * N.B. we cannot store the actual objects in a HashSet, as that would use the very hashCode()
+     * NOTE: we cannot store the actual objects in a HashSet, as that would use the very hashCode()
      * we are in the process of calculating.
      *
      * So we generate a one-to-one mapping from the original object to a new object.
diff --git a/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java b/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
index 36b89e8e0..69992ed9d 100644
--- a/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
+++ b/src/test/java/org/apache/commons/lang3/text/ExtendedMessageFormatTest.java
@@ -133,7 +133,7 @@ public class ExtendedMessageFormatTest extends TestCase {
 //    /**
 //     * Test extended formats with choice format.
 //     *
-//     * N.B. FAILING - currently sub-formats not supported
+//     * NOTE: FAILING - currently sub-formats not supported
 //     */
 //    public void testExtendedWithChoiceFormat() {
 //        String pattern = "Choice: {0,choice,1.0#{1,lower}|2.0#{1,upper}}";
@@ -150,7 +150,7 @@ public class ExtendedMessageFormatTest extends TestCase {
 //    /**
 //     * Test mixed extended and built-in formats with choice format.
 //     *
-//     * N.B. FAILING - currently sub-formats not supported
+//     * NOTE: FAILING - currently sub-formats not supported
 //     */
 //    public void testExtendedAndBuiltInWithChoiceFormat() {
 //        String pattern = "Choice: {0,choice,1.0#{0} {1,lower} {2,number}|2.0#{0} {1,upper} {2,number,currency}}";