Do you wait “in line” or “on line”?
Like: “I waited (or I stood) on line for two hours to buy concert tickets.”
Seems to me that this concept refers to “a line of people”: “I waited in a long line of people” – you were in a line.
Hence, the correct usage just has to be “in line.” Since you don’t wait “on a line of people,” “on line” is simply wrong. (Although the incorrect user may claim he’s saying, “I’m waiting on a line of people to move up.” But then, wouldn’t it be proper to say, “I’m waiting for the line to move up”? And, one can’t use this excuse if one says, “I stood on line . . . .”)
It seems to me even more problematic that the use of “on line” in this context has become more popular since the advent of the internet. I mean, if you are on the net, waiting to buy tickets or something, or if you say, “I stayed on the internet for an hour to see if you would respond to my post,” then you are waiting “online.” But, unless you’re standing in a line where there’s a line painted that you’re standing on, you’re not waiting “on line.” (And, if you’re waiting on an actual line, then you’re standing on a line, not on line, and certainly not online.
This becomes even more troublesome when a radio talk show host says, “We’d like to get to some listener calls, because we have a lot of people waiting on line.” I don’t know if he’s trying to say, “We have a lot of people waiting in line (to talk to us),” or, “We have a lot of people waiting on the (telephone) line.” I honestly don’t know which. Though, I’m pretty sure we know that the callers aren’t waiting “online.”