diff --git a/core/config.class.inc.php b/core/config.class.inc.php
index bb303c5a5c..81e730b389 100644
--- a/core/config.class.inc.php
+++ b/core/config.class.inc.php
@@ -94,7 +94,7 @@ class Config
 	protected $m_aSettings = array(
 		'app_env_label' => array(
 			'type' => 'string',
-			'description' => 'Label displayed to describe the current application environnment, defaults to the environment name (e.g. "production")',
+			'description' => 'Label displayed to describe the current application environment, defaults to the environment name (e.g. "production")',
 			'default' => '',
 			'value' => '',
 			'source_of_value' => '',
@@ -201,7 +201,7 @@ class Config
 		),
 		'skip_strong_security' => array(
 			'type' => 'bool',
-			'description' => 'Disable strong security - TEMPORY: this flag should be removed when we are more confident in the recent change in security',
+			'description' => 'Disable strong security - TEMPORARY: this flag should be removed when we are more confident in the recent change in security',
 			'default' => true,
 			'value' => true,
 			'source_of_value' => '',
@@ -217,7 +217,7 @@ class Config
 		),
 		'query_indentation_enabled' => array(
 			'type' => 'bool',
-			'description' => 'For developpers: format the SQL queries for human analysis',
+			'description' => 'For developers: format the SQL queries for human analysis',
 			'default' => false,
 			'value' => false,
 			'source_of_value' => '',
@@ -225,7 +225,7 @@ class Config
 		),
 		'disable_mandatory_ext_keys' => array(
 			'type' => 'bool',
-			'description' => 'For developpers: allow every external keys to be undefined',
+			'description' => 'For developers: allow every external keys to be undefined',
 			'default' => false,
 			'value' => false,
 			'source_of_value' => '',
@@ -450,7 +450,7 @@ class Config
 		),
 		'email_transport' => array(
 			'type' => 'string',
-			'description' => 'Mean to send emails: PHPMail (uses the function mail()) or SMTP (implements the client protocole)',
+			'description' => 'Mean to send emails: PHPMail (uses the function mail()) or SMTP (implements the client protocol)',
 			'default' => "PHPMail",
 			'value' => "PHPMail",
 			'source_of_value' => '',
@@ -546,7 +546,7 @@ class Config
 		),
 		'timezone' => array(
 			'type' => 'string',
-			'description' => 'Timezone (reference: http://php.net/manual/en/timezones.php). If empty, it will be left unchanged and MUST be explicitely configured in PHP',
+			'description' => 'Timezone (reference: http://php.net/manual/en/timezones.php). If empty, it will be left unchanged and MUST be explicitly configured in PHP',
 			// examples... not used (nor 'description')
 			'examples' => array(
 				'America/Sao_Paulo',
@@ -944,7 +944,7 @@ class Config
 		),
 		'tracking_level_linked_set_default' => array(
 			'type' => 'integer',
-			'description' => 'Default tracking level if not explicitely set at the attribute level, for AttributeLinkedSet (defaults to NONE in case of a fresh install, LIST otherwise - this to preserve backward compatibility while upgrading from a version older than 2.0.3 - see TRAC #936)',
+			'description' => 'Default tracking level if not explicitly set at the attribute level, for AttributeLinkedSet (defaults to NONE in case of a fresh install, LIST otherwise - this to preserve backward compatibility while upgrading from a version older than 2.0.3 - see TRAC #936)',
 			'default' => LINKSET_TRACKING_LIST,
 			'value' => LINKSET_TRACKING_LIST,
 			'source_of_value' => '',
@@ -952,7 +952,7 @@ class Config
 		),
 		'tracking_level_linked_set_indirect_default' => array(
 			'type' => 'integer',
-			'description' => 'Default tracking level if not explicitely set at the attribute level, for AttributeLinkedSetIndirect',
+			'description' => 'Default tracking level if not explicitly set at the attribute level, for AttributeLinkedSetIndirect',
 			'default' => LINKSET_TRACKING_ALL,
 			'value' => LINKSET_TRACKING_ALL,
 			'source_of_value' => '',