Re: electric/electricity/utility bill Yes, there can be a water bill and a gas bill.
As for when it is plural, it is actaully a lot less easy that I would like. Sometimes, people have their gas and water for example, provided by the same person, and thus get a combined bill. This bill is called the gas and electricity bill or just the utility bill.
When there are several separate bills, they are collectively known as the utility bills.
The complication arrives when people talk about their utility bills. A household's utility bills are usually the actaul bills, that is the pieces of paper. When talking in general about the cost of the utilities, we often call this the household's utility bill.
So in summary: The utility bill can be the combined bill for utilities (the piece of paper) or the total amount of money spent on utilities The utility bills are all the separate bills for the utilities (the pieces of paper for the gas and for the electricity etc) |