diff --git a/src/Symfony/Component/Translation/Range.php b/src/Symfony/Component/Translation/Interval.php
similarity index 73%
rename from src/Symfony/Component/Translation/Range.php
rename to src/Symfony/Component/Translation/Interval.php
index d16c762faa57..955439506439 100644
--- a/src/Symfony/Component/Translation/Range.php
+++ b/src/Symfony/Component/Translation/Interval.php
@@ -12,13 +12,13 @@
  */
 
 /**
- * Range tests if a given number belongs to a given range.
+ * Tests if a given number belongs to a given math interval.
  *
- * A range can represent a finite set of numbers:
+ * An interval can represent a finite set of numbers:
  *
  *  {1,2,3,4}
  *
- * A range can represent numbers between two numbers:
+ * An interval can represent numbers between two numbers:
  *
  *  [1, +Inf]
  *  ]-1,2[
@@ -27,22 +27,24 @@
  * The right delimiter can be [ (exclusive) or ] (inclusive).
  * Beside numbers, you can use -Inf and +Inf for the infinite.
  *
+ * @see http://en.wikipedia.org/wiki/Interval_%28mathematics%29#The_ISO_notation
+ *
  * @author Fabien Potencier <fabien.potencier@symfony-project.com>
  */
-class Range
+class Interval
 {
     /**
-     * Tests if the given number is in the range.
+     * Tests if the given number is in the math interval.
      *
-     * @param integer $number A number
-     * @param string  $range  A range of numbers
+     * @param integer $number   A number
+     * @param string  $interval An interval
      */
-    static public function test($number, $range)
+    static public function test($number, $interval)
     {
-        $range = trim($range);
+        $interval = trim($interval);
 
-        if (!preg_match('/^'.self::getRangeRegexp().'$/x', $range, $matches)) {
-            throw new \InvalidArgumentException(sprintf('"%s" is not a valid range expression.', $range));
+        if (!preg_match('/^'.self::getIntervalRegexp().'$/x', $interval, $matches)) {
+            throw new \InvalidArgumentException(sprintf('"%s" is not a valid interval.', $interval));
         }
 
         if ($matches[1]) {
@@ -66,11 +68,11 @@ static public function test($number, $range)
     }
 
     /**
-     * Returns a Regexp that matches valid ranges.
+     * Returns a Regexp that matches valid intervals.
      *
      * @return string A Regexp (without the delimiters)
      */
-    static public function getRangeRegexp()
+    static public function getIntervalRegexp()
     {
         return <<<EOF
         ({\s*
diff --git a/src/Symfony/Component/Translation/MessageSelector.php b/src/Symfony/Component/Translation/MessageSelector.php
index f5cc34ae262c..d42da7a3b786 100644
--- a/src/Symfony/Component/Translation/MessageSelector.php
+++ b/src/Symfony/Component/Translation/MessageSelector.php
@@ -26,8 +26,8 @@ public function choose($message, $number, $locale)
         foreach ($parts as $part) {
             $part = trim($part);
 
-            if (preg_match('/^(?<range>'.Range::getRangeRegexp().')\s+(?<message>.+?)$/x', $part, $matches)) {
-                $explicitRules[$matches['range']] = $matches['message'];
+            if (preg_match('/^(?<interval>'.Interval::getIntervalRegexp().')\s+(?<message>.+?)$/x', $part, $matches)) {
+                $explicitRules[$matches['interval']] = $matches['message'];
             } elseif (preg_match('/^\w+\: +(.+)$/', $part, $matches)) {
                 $standardRules[] = $matches[1];
             } else {
@@ -36,8 +36,8 @@ public function choose($message, $number, $locale)
         }
 
         // try to match an explicit rule, then fallback to the standard ones
-        foreach ($explicitRules as $range => $m) {
-            if (Range::test($number, $range)) {
+        foreach ($explicitRules as $interval => $m) {
+            if (Interval::test($number, $interval)) {
                 return $m;
             }
         }
diff --git a/tests/Symfony/Tests/Component/Translation/RangeTest.php b/tests/Symfony/Tests/Component/Translation/IntervalTest.php
similarity index 77%
rename from tests/Symfony/Tests/Component/Translation/RangeTest.php
rename to tests/Symfony/Tests/Component/Translation/IntervalTest.php
index 68a57abb2d36..45c84b5c5f7c 100644
--- a/tests/Symfony/Tests/Component/Translation/RangeTest.php
+++ b/tests/Symfony/Tests/Component/Translation/IntervalTest.php
@@ -11,16 +11,16 @@
 
 namespace Symfony\Tests\Component\Translation;
 
-use Symfony\Component\Translation\Range;
+use Symfony\Component\Translation\Interval;
 
-class RangeTest extends \PHPUnit_Framework_TestCase
+class IntervalTest extends \PHPUnit_Framework_TestCase
 {
     /**
      * @dataProvider getTests
      */
-    public function testTest($expected, $number, $range)
+    public function testTest($expected, $number, $interval)
     {
-        $this->assertEquals($expected, Range::test($number, $range));
+        $this->assertEquals($expected, Interval::test($number, $interval));
     }
 
     /**
@@ -28,7 +28,7 @@ public function testTest($expected, $number, $range)
      */
     public function testTestException()
     {
-        Range::test(1, 'foobar');
+        Interval::test(1, 'foobar');
     }
 
     public function getTests()