Sentence:  At the Big Food Group, the new team headed by Bill Grimsey was quick to discover that turning the company around might be more difficult than it thought because of double counting of revenues as a result of <WSD>bogof</WSD> (buy one, get one free) promotions 
Meaning of the word marked with <WSD> tags:  Buy one, get one free (a retail promotion in which consumers may purchase two items for the usual price of one).