diff --git a/src/DOM.php b/src/DOM.php
index 9daac5b..701081a 100644
--- a/src/DOM.php
+++ b/src/DOM.php
@@ -65,7 +65,7 @@ abstract class DOM implements Query, IteratorAggregate, Countable
 	 *
 	 * @param mixed  $document
 	 *   A document-like object.
-	 * @param string|null $string
+	 * @param string|null $selector
 	 *   A CSS 3 Selector
 	 * @param array  $options
 	 *   An associative array of options.
@@ -73,9 +73,9 @@ abstract class DOM implements Query, IteratorAggregate, Countable
 	 * @throws Exception
 	 * @see qp()
 	 */
-	public function __construct($document = null, $string = null, $options = [])
+	public function __construct($document = null, $selector = null, $options = [])
 	{
-		$string        = is_string($string) ? trim($string) : '';
+		$selector        = is_string($selector) ? trim($selector) : '';
 		$this->options = $options + Options::get() + $this->options;
 
 		$parser_flags = $options['parser_flags'] ?? self::DEFAULT_PARSER_FLAGS;
@@ -163,12 +163,12 @@ public function __construct($document = null, $string = null, $options = [])
 		}
 
 		// Do a find if the second param was set.
-		if (strlen($string) > 0) {
+		if (strlen($selector) > 0) {
 			// We don't issue a find because that creates a new DOMQuery.
 			//$this->find($string);
 
 			$query = new DOMTraverser($this->matches);
-			$query->find($string);
+			$query->find($selector);
 			$this->setMatches($query->matches());
 		}
 	}
diff --git a/src/qp_functions.php b/src/qp_functions.php
index fbffef0..bde265c 100644
--- a/src/qp_functions.php
+++ b/src/qp_functions.php
@@ -147,7 +147,7 @@
  *
  * @param mixed  $document
  *  A document in one of the forms listed above.
- * @param string|null $string
+ * @param string|null $selector
  *  A CSS 3 selector.
  * @param array  $options
  *  An associative array of options. Currently supported options are listed above.
@@ -155,9 +155,9 @@
  * @return mixed|DOMQuery
  *  Or possibly another QueryPath-like object if you overrode QueryPath_class.
  */
-function qp($document = null, $string = null, array $options = [])
+function qp($document = null, $selector = null, array $options = [])
 {
-	return QueryPath::with($document, $string, $options);
+	return QueryPath::with($document, $selector, $options);
 }
 
 /**