diff --git a/dev/examples/ical/event_recu.txt b/dev/examples/ical/event_recu.txt
index d9e62dccbdb..5bcc491a0b3 100644
--- a/dev/examples/ical/event_recu.txt
+++ b/dev/examples/ical/event_recu.txt
@@ -1,7 +1,7 @@
 Example fo recurring event, 1 week, no end, exported by Google
 
 # The recurring event were recorded every monday the 20150518. This is the Recurrence-id, but then
-# first occurence was moved on tuesday. So this record were added.
+# first occurrence was moved on tuesday. So this record were added.
 BEGIN:VEVENT
 DTSTART;TZID=Europe/Paris:20150519T100000
 DTEND;TZID=Europe/Paris:20150519T110000
diff --git a/dev/examples/mail/README b/dev/examples/mail/README
index 8be1c052768..6b045e32b51 100644
--- a/dev/examples/mail/README
+++ b/dev/examples/mail/README
@@ -1,5 +1,5 @@
 README (English)
 --------------------------------
 
-This directory contains example of well formated mail messages.
+This directory contains example of well formatted mail messages.
 This is to help to build the CMailFile.class.php code.
diff --git a/dev/initdata/import-products.php b/dev/initdata/import-products.php
index 4494e65c280..fa9cfd6592b 100755
--- a/dev/initdata/import-products.php
+++ b/dev/initdata/import-products.php
@@ -93,7 +93,7 @@ if (! $confirmed)
     $input = trim(fgets(STDIN));
 }
 
-// Open input and ouput files
+// Open input and output files
 $fhandle = fopen($filepath, 'r');
 if (! $fhandle)
 {
diff --git a/dev/initdata/import-thirdparties.php b/dev/initdata/import-thirdparties.php
index 69b9bb8bdc6..8826ca18544 100755
--- a/dev/initdata/import-thirdparties.php
+++ b/dev/initdata/import-thirdparties.php
@@ -93,7 +93,7 @@ if (! $confirmed)
     $input = trim(fgets(STDIN));
 }
 
-// Open input and ouput files
+// Open input and output files
 $fhandle = fopen($filepath, 'r');
 if (! $fhandle)
 {
diff --git a/dev/initdata/import-users.php b/dev/initdata/import-users.php
index 2a1dcc3d826..34130890f4b 100755
--- a/dev/initdata/import-users.php
+++ b/dev/initdata/import-users.php
@@ -93,7 +93,7 @@ if (! $confirmed)
     $input = trim(fgets(STDIN));
 }
 
-// Open input and ouput files
+// Open input and output files
 $fhandle = fopen($filepath, 'r');
 if (! $fhandle)
 {
diff --git a/dev/setup/codesniffer/ruleset.xml b/dev/setup/codesniffer/ruleset.xml
index a82086fe313..f286175c2f8 100644
--- a/dev/setup/codesniffer/ruleset.xml
+++ b/dev/setup/codesniffer/ruleset.xml
@@ -166,7 +166,7 @@
 	<!-- Disallow usage of tab -->
 	<!--  <rule ref="Generic.WhiteSpace.DisallowTabIndent" /> -->
 
-	<!-- Check indent are done with spaces and wiht correct number -->
+	<!-- Check indent are done with spaces and with correct number -->
 	<!-- Disabled as this does not support tab -->
 	<!-- <rule ref="Generic.WhiteSpace.ScopeIndent" /> -->
 
diff --git a/dev/translation/README b/dev/translation/README
index 5f7b1c124e1..b470e4228d8 100644
--- a/dev/translation/README
+++ b/dev/translation/README
@@ -4,7 +4,7 @@ This directory contains tools to generate translation files for a new
 languages or to update translation files for existing languages.
 See Dolibarr Wiki page:
 http://wiki.dolibarr.org/index.php/Translator_documentation
-For more informations on how to use them.
+For more information on how to use them.
 
 To install transifex client:
 sudo pip install --upgrade transifex-client
diff --git a/htdocs/accountancy/admin/productaccount.php b/htdocs/accountancy/admin/productaccount.php
index f2676620c30..a81aa472ef7 100644
--- a/htdocs/accountancy/admin/productaccount.php
+++ b/htdocs/accountancy/admin/productaccount.php
@@ -188,7 +188,7 @@ if ($action == 'update') {
 
 $form = new FormAccounting($db);
 
-// Defaut AccountingAccount RowId Product / Service
+// Default AccountingAccount RowId Product / Service
 // at this time ACCOUNTING_SERVICE_SOLD_ACCOUNT & ACCOUNTING_PRODUCT_SOLD_ACCOUNT are account number not accountingacount rowid
 // so we need to get those default value rowid first
 $accounting = new AccountingAccount($db);
diff --git a/htdocs/api/README.md b/htdocs/api/README.md
index 0b773888882..7ab85cc26bb 100644
--- a/htdocs/api/README.md
+++ b/htdocs/api/README.md
@@ -43,7 +43,7 @@ Develop an API
 
 The API uses Lucarast Restler framework. Please check documentation https://www.luracast.com/products/restler and examples http://help.luracast.com/restler/examples/ 
 
-Github contains also usefull informations : https://github.com/Luracast/Restler
+Github contains also useful information : https://github.com/Luracast/Restler
 
 To implement it into Dolibarr, you need to create a specific class for object we want to use. A skeleton file is available into /modulebuilder/class directory : *api_mymodule_class.class.php* 
 The API class file must be put into object class directory, with specific file name. By example, API class file for '*myobject*' must be put as : /htdocs/*myobject*/class/api_*myobject*.class.php. Class must be named  **MyobjectApi**.
@@ -67,6 +67,6 @@ It is possible to specify url for API methods by simply use the PHPDoc tag **@ur
 **Other Annotations**
 Other annotations are used, you are encouraged to read them : https://github.com/Luracast/Restler/blob/master/ANNOTATIONS.md
 
-PHPDoc tags can also be used to specify variables informations for API. Again, rtfm : https://github.com/Luracast/Restler/blob/master/PARAM.md 
+PHPDoc tags can also be used to specify variables information for API. Again, rtfm : https://github.com/Luracast/Restler/blob/master/PARAM.md 
 
 
diff --git a/htdocs/comm/action/class/actioncommreminder.class.php b/htdocs/comm/action/class/actioncommreminder.class.php
index 02de73eeb0a..f157c90f95d 100644
--- a/htdocs/comm/action/class/actioncommreminder.class.php
+++ b/htdocs/comm/action/class/actioncommreminder.class.php
@@ -58,7 +58,7 @@ class ActionCommReminder extends CommonObject
 	 *  'visible' says if field is visible in list (Examples: 0=Not visible, 1=Visible on list and create/update/view forms, 2=Visible on list only. Using a negative value means field is not shown by default on list but can be selected for viewing)
 	 *  'notnull' is set to 1 if not null in database. Set to -1 if we must set data to null if empty ('' or 0).
 	 *  'index' if we want an index in database.
-	 *  'foreignkey'=>'tablename.field' if the field is a foreign key (it is recommanded to name the field fk_...).
+	 *  'foreignkey'=>'tablename.field' if the field is a foreign key (it is recommended to name the field fk_...).
 	 *  'position' is the sort order of field.
 	 *  'searchall' is 1 if we want to search in this field when making a search from the quick search button.
 	 *  'isameasure' must be set to 1 if you want to have a total on list for this field. Field type must be summable like integer or double(24,8).
diff --git a/htdocs/comm/action/class/ical.class.php b/htdocs/comm/action/class/ical.class.php
index 1f4d3d7fc95..d005549636c 100644
--- a/htdocs/comm/action/class/ical.class.php
+++ b/htdocs/comm/action/class/ical.class.php
@@ -109,7 +109,7 @@ class ICal
 
         $this->file_text = preg_split("[\n]", $this->file_text);
 
-        // is this text vcalendar standart text ? on line 1 is BEGIN:VCALENDAR
+        // is this text vcalendar standard text ? on line 1 is BEGIN:VCALENDAR
         if (!stristr($this->file_text[0], 'BEGIN:VCALENDAR')) return 'error not VCALENDAR';
 
         $insidealarm=0;
diff --git a/htdocs/comm/mailing/class/mailing.class.php b/htdocs/comm/mailing/class/mailing.class.php
index 280baebbe5b..580a36425c8 100644
--- a/htdocs/comm/mailing/class/mailing.class.php
+++ b/htdocs/comm/mailing/class/mailing.class.php
@@ -528,7 +528,7 @@ class Mailing extends CommonObject
 
 
 	/**
-	 *  Return a link to the object card (with optionaly the picto)
+	 *  Return a link to the object card (with optionally the picto)
 	 *
 	 *	@param	int		$withpicto					Include picto in link (0=No picto, 1=Include picto into link, 2=Only picto)
 	 *	@param	string	$option						On what the link point to ('nolink', ...)
diff --git a/htdocs/fichinter/class/api_interventions.class.php b/htdocs/fichinter/class/api_interventions.class.php
index 046d8307466..26173db12af 100644
--- a/htdocs/fichinter/class/api_interventions.class.php
+++ b/htdocs/fichinter/class/api_interventions.class.php
@@ -65,7 +65,7 @@ class Interventions extends DolibarrApi
     /**
      * Get properties of a Expense Report object
      *
-     * Return an array with Expense Report informations
+     * Return an array with Expense Report information
      *
      * @param       int         $id         ID of Expense Report
      * @return 	    array|mixed             Data without useless information
diff --git a/htdocs/fichinter/class/fichinter.class.php b/htdocs/fichinter/class/fichinter.class.php
index e162b463caf..97ecffacf95 100644
--- a/htdocs/fichinter/class/fichinter.class.php
+++ b/htdocs/fichinter/class/fichinter.class.php
@@ -419,7 +419,7 @@ class Fichinter extends CommonObject
 
 				if ($this->statut == 0) $this->brouillon = 1;
 
-				// Retreive extrafields
+				// Retrieve extrafields
 				$this->fetch_optionals();
 
 				/*
diff --git a/htdocs/societe/price.php b/htdocs/societe/price.php
index 92042a8403d..c9342e2f41e 100644
--- a/htdocs/societe/price.php
+++ b/htdocs/societe/price.php
@@ -90,7 +90,7 @@ if (empty($reshook))
     	$tva_tx = preg_replace('/[^0-9\.].*$/', '', $tva_tx_txt);     // keep remove all after the numbers and dot
     	$npr = preg_match('/\*/', $tva_tx_txt) ? 1 : 0;
     	$localtax1 = 0; $localtax2 = 0; $localtax1_type = '0'; $localtax2_type = '0';
-    	// If value contains the unique code of vat line (new recommanded method), we use it to find npr and local taxes
+    	// If value contains the unique code of vat line (new recommended method), we use it to find npr and local taxes
     	if (preg_match('/\((.*)\)/', $tva_tx_txt, $reg))
     	{
     	    // We look into database using code (we can't use get_localtax() because it depends on buyer that is not known). Same in update price.
@@ -244,7 +244,7 @@ if (! empty($conf->global->PRODUIT_CUSTOMER_PRICES)) {
 	if (! $sortfield)
 		$sortfield = "soc.nom";
 
-		// Build filter to diplay only concerned lines
+		// Build filter to display only concerned lines
 	$filter = array (
 		't.fk_soc' => $object->id
 	);
diff --git a/htdocs/takepos/css/pos.css b/htdocs/takepos/css/pos.css
index c47d7190baa..87c74c8952d 100644
--- a/htdocs/takepos/css/pos.css
+++ b/htdocs/takepos/css/pos.css
@@ -101,7 +101,7 @@ div.description{
 	bottom:0px; /* position will be on bottom */
 	left:0px;
 	width:100%;
-	/* styling bellow */
+	/* styling below */
 	background-color:black;
 	font-family: 'tahoma';
 	color:white;
diff --git a/htdocs/takepos/invoice.php b/htdocs/takepos/invoice.php
index 308bd47f799..9c596a12cd7 100644
--- a/htdocs/takepos/invoice.php
+++ b/htdocs/takepos/invoice.php
@@ -52,7 +52,7 @@ $resql = $db->query($sql);
 $row = $db->fetch_array($resql);
 $placeid = $row[0];
 
-if (!$placeid) { $placeid = 0; // not necesary
+if (!$placeid) { $placeid = 0; // not necessary
 } else
 {
     $invoice = new Facture($db);
diff --git a/htdocs/takepos/receipt.php b/htdocs/takepos/receipt.php
index 02adf4ace9c..456ddcefdb5 100644
--- a/htdocs/takepos/receipt.php
+++ b/htdocs/takepos/receipt.php
@@ -40,7 +40,7 @@ if ($place>0){
 $object=new Facture($db);
 $object->fetch($facid);
 
-// IMPORTANT: This file is sended to 'Takepos Printing' application. Keep basic file. No external files as css, js... If you need images use absolut path.
+// IMPORTANT: This file is sended to 'Takepos Printing' application. Keep basic file. No external files as css, js... If you need images use absolute path.
 ?>
 <html>
 <body>
diff --git a/htdocs/website/class/website.class.php b/htdocs/website/class/website.class.php
index 36e35d5a07c..cd7fa0cdf58 100644
--- a/htdocs/website/class/website.class.php
+++ b/htdocs/website/class/website.class.php
@@ -661,7 +661,7 @@ class Website extends CommonObject
 	}
 
 	/**
-	 *  Return a link to the user card (with optionaly the picto)
+	 *  Return a link to the user card (with optionally the picto)
 	 * 	Use this->id,this->lastname, this->firstname
 	 *
 	 *	@param	int		$withpicto			Include picto in link (0=No picto, 1=Include picto into link, 2=Only picto)
diff --git a/test/README b/test/README
index c2cff847c0f..3e13bbbec70 100644
--- a/test/README
+++ b/test/README
@@ -9,7 +9,7 @@ PHPUNIT
 To use make phpunit analysis, you must:
 
 * Install PHPUnit
-If using Eclipse, you must also add an entry as external tool for phpunit programm with:
+If using Eclipse, you must also add an entry as external tool for phpunit program with:
 -Name:      PHPUnit
 -Location:  Linux:   /usr/bin/php
             Windows: C:\Program Files (x86)\wamp\bin\php\php5.2.8\php.exe
diff --git a/test/phpunit/RestAPIDocumentTest.php b/test/phpunit/RestAPIDocumentTest.php
index e9606b001b9..d1be0630e6d 100644
--- a/test/phpunit/RestAPIDocumentTest.php
+++ b/test/phpunit/RestAPIDocumentTest.php
@@ -149,7 +149,7 @@ class RestAPIDocumentTest extends PHPUnit_Framework_TestCase
         echo __METHOD__.' Request POST url='.$url."\n";
 
 
-        // Send to non existant directory
+        // Send to non existent directory
 
         dol_delete_dir_recursive(DOL_DATA_ROOT.'/medias/tmpphpunit');
 
@@ -171,7 +171,7 @@ class RestAPIDocumentTest extends PHPUnit_Framework_TestCase
         $this->assertEquals('401', $object['error']['code']);
 
 
-        // Send to existant directory
+        // Send to existent directory
 
         dol_mkdir(DOL_DATA_ROOT.'/medias/tmpphpunit/tmpphpunit2');