When it comes to English grammar and usage, a lot of people worry about matters of “right” and “wrong.” For example, they may be the victims of the people who say it’s wrong to use “since” to mean “because,” as in, “Since the Dodgers are so far behind, we are leaving the game early.”
This example is straight off a website called Epson Presenters Online that says unequivocally: “‘Since’ is related to time. ‘Because’ is related to cause.” For this reason, the website authors say, our Dodgers example is wrong. It should be, “Because the Dodgers are so far behind, we are leaving the game early.”
There’s just one problem: “Webster’s New World College Dictionary,” “The American Heritage Dictionary” and “Merriam-Webster Online” all say that “since” can mean “because.”