So i have the WordPress Dutch version and…

So i have the WordPress Dutch version and i’d like to change a button from Zoeken (Search) to Zoek (thats also search but shorter) could you tell me how i could do that because i can’t find the .po and .moMO files MO, or Machine Object is a binary data file that contains object data referenced by a program. It is typically used to translate program code, and may be loaded or imported into the GNU gettext program. This is the format used in a WordPress install. These files are normally located inside .../wp-content/languages/ file
The site: http://tinyurl.com/c25q95r (look to the right side)

#change, #dutch, #translate