New Zoho user - rookie question

New Zoho user - rookie question

Just attempting to enter "contacts" for the first time.  Within that template is a space for "Account Name".
 
Based on Zoho definition, an account is "companies or department within a company, with which you make busines dealings."  I'm not at that point yet having just made cold calls to potential customers.
 
QUESTION:  If I put the company name in that slot, is it going to confuse future reports when I ACTUALLY do business with a company?  How would I know the difference if I'm wanting to look at companies I actually do business with versus potential accounts?
 
 It seems that on the Contacts template, that space should just be called "Company" in order to avoid that confusion. 
 
Am I daft or is there a way to change that field name?  I've looked at the edit capabilities and I don't see any way of getting rid of that field or changing its name.
 
Thanks!