English to Arabic Other Names (personal, company) press release

I have made a serach to get the araic meaning. Actually i found so many arabic translatios and also transliteration.
check this link.

http://www.google.com/search?hl=ar&q="EIU"وحدة&lr=

what i need to know: it is correct to choose " to transliterate" due to lack of fixed translation ?

OR I should choose one of the many translations available.

OR anyone can help with a formal fixed translation. "through a reference"

Thanks alot.