sumolari

With Massive Replacer you can replace strings of your posts by other different. 
You can, among other things, put in bold text of all articles or replace your letter combinations for various other.
The strings that you want replace are placed in the WordPress database.
<h3>Usage</h3>
Go to Massive Replacer option in the WordPress admin panel. Next you will see an a form with 2 textarea. 
In the first textarea you must write the strings to replace. You can do meny replacement. Write “]]||[[” between each string and the plugin will think 
that they’re different strings.
In the second textarea you must write the strings that you want to appear. You can do the same that in the first textarea.
<h3>Frequently Asked Questions and More</h3>
Plase, visit the plugin page, at http://blog-sumolari.sumolari.com.

Massive Replacer

Massive Replacer lets you replace a string determined by a different.

Fahad Alduraibi

Do you write posts in different languages that have different directions? 
This plugin enables a feature in the post editor which allow writing texts in Left-to-Right and Right-to-Left directions in the same post (or page) so you can write in English (and any other LTR language) and also RTL languages like Arabic, Persian and Hebrew.
Simply look for the new buttons added to the post editor after installing the plugin. (See the screenshots for better understanding)
اضافة زرارين لشريط التحرير لتمكين تحويل النص للقراءة من اليمين لليسار مثل اللغة العربية والفارسية والعبرية
<a href="http://www.fadvisor.net/blog/2008/10/wp-rtl/" rel="nofollow ugc">More details</a>
<ul>
<li>Note: This plugin will not change the direction of the post title, since that is controlled by the theme.</li>
</ul>

WP-RTL

Adds two buttons to the TinyMCE editor to enable writing text in Left to Right (LTR) and Right to Left (RTL) directions.

Massive Replacer vs WP-RTL