I know the temptation to choose a "sexy domain name" is real, especially when you find one really cute domain available at just US$9.99 at GoDaddy.com. Yeh, "Orange.com" sounds more stylish than "Accountingoutsourcing.com". But unless you have a million bucks to spend on advertising "Orange.com" as an accounting outsource supplier, stick to the later one. Google will rank you higher for the keywords "accounting" and "outsourcing" than a mere non-descript "Orange.com".  Since "accounting" and "outsource" are keywords which describe your business sphere, there is a higher chance of people finding your website for what the business really offer.

As for "orange.com", if you find the domain name still available, call me. I have a e-commerce business selling oranges.  Hahahaha!!!