Apollo81, on Feb 22 2008, 04:46 PM, said:
It looks to me like a lot of people redefine what a limit raise is based on what partner has shown. This is a very nitpicky point, but in my mind "limit raise" means 'invitational opposite a standard opener' and "invitational" means 'partner should bid game on most hands and sign off with no extras'.
[snip]
Does anyone else share this philosophy or am I way out in left field here?
You're certainly in the leftmost hemisphere. I think that there are two different usages:
(1) In the UK, "limit raise" was traditionally used to describe any raise which was limited to the values for the level to which it was made. Used in that sense, all of these would be described as "limit raises":
1S-3S
1S-2S
1NT-2NT
1C-1S-3S [uncontested]
(1C) 1S-3S [invitational raise opposite an overcall]
Originally the point was to distinguish a limited non-forcing bid from the forcing or wide-range bids common in the USA at the time.
The term is now rarely used other than when raising a suit to the three level. When used in this way, the strength shown varies according to the context.
(2) I have noticed that some Americans use "limit raise" to mean "a hand that would have raised an opening bid to the three level invitationally". I don't know how widespread this usage is. Some people in the UK have also adopted this usage, probably as a result of reading American books.
The Encyclopedia of Bridge, which is published by the ACBL but edited by an expatriate Englishman, defines it as "a raise with closely defined limits of strength", and gives examples that include a single raise to the two level. That is, it follows the traditional British usage.
Personally, I avoid using the term. If a bid is invitational, I call it "invitational", and I don't feel any need to relate this to the strength needed for making some other category of invitational bid.