Here are a few abbreviations we often resort to in the interest of conciseness, as well as a few technical bridge terms. Please refer to the BidBase help files for more information on the use of these abbreviations and other terms.
C, D, H, S, N, x, T - suit abbreviations used in bids, where C=Clubs, D=Diamonds, H=Hearts, S=Spades, x="x" Suit (see file linked above), T=Trump suit agreed by the bidding; e.g.: on bidding of 1S-P-2S, then a reference to T, as in 4T, means 4S. Some bids, such as slam bidding conventions, may use TA, TK, TQ to indicate the top 3 trump cards.
advancer - partner of overcaller/take-out-doubler. Usually called responder.
bid - some number of a suit or notrump. See call.
BON - Bid Order Number. (See docs.)
call - any bid, as well as double, redouble, and pass.
CHO - Center-Hand Opponent (sarcastic). Your partner. See LHO, RHO.
docs - documentation. Help files for BidBase as well as for many conventions.
HCPs - High Card Points, where Ace=4, King=3, etc.
Lefty - The player on the bidder's left. See LHO.
LHO - Left-Hand Opponent. The player on the left of bidder.
Opp - opponent.
pard - your partner. See CHO.
QTs - See: Quick Tricks in the docs.
responder - partner of opener or of any player making a conventional bid. See advancer.
RHO - Right-Hand Opponent. The player on the right of bidder.
Righty - The player on the bidder's right. See RHO.
sac - sacrifice (bid).
S.O.S. redouble - asks partner to bid his best suit to get out of a doubled contract.
specs - specifications for an entry, such as HCPs.
Bidding Database codes:
For Cnv, Sub, and Pct:
T = They
[blank] = both use it
0 = neither side uses it
0 in Sub deselects ALL entries for the same Subcategory of the same Convention.
0 in Pct deselects only the current entry.
I = for IMPs only.
D = Double Dummy Analysis
0-99 = percent of time to use one of 2+ alternative bids.
[Blank] = always use it unless Cnv or Sub is 0.
HCP2N = range of HCPs a hand must be in for 2NT
Min = minimum for a NT opening (either 1NT or 2NT)
Min+ = anything more than the minnimum
Min+1 = the middle value for opening NT
Min+2 = the maximum for opening NT
Min+3 = 1 over the maximum for opening NT (e.g.: a "bad" 18 if 1NT is 15-17)
Min-1 = 1 under the minimum (e.g.: a "good" 14)
T... = Total HCPs + distribution points. (e.g.: T11+, T6-10, T<15)
Suit Point Specs:
Suit points can be specified in the usual manner: 2-4, 4+, <=2, etc
A or K specify Ace or King for a suit.
Points may be specified by using the following codes:
a = "AK, KQ, or AQ"
b = "AJT, KJT, or QJT"
c = "KQJ, AQJ, or AKQ"
d = "AKQJ, KQJT, AKQT, or AKJT"
2stop = "AK, AQ, AJTx, AT98x, KQJ, KQT, KQ9x, KJTx, or KT9x",
1stop = "A, Kx, QJx, QT9x, Q98x, JT9x, J98xx, or T98xx"
hstop = half-stop = "Qxx or Jxxx". (See Western Cue Bids.)
0stop = no stopper. (Opps can take 5 tricks off the top.)
FRC = First Round Control (either an Ace or Void)
SRC = Second Round Control (either King or Singleton)
P = honors are protected by the bidding.
i# = Intermediates (e.g.: 4+i1 means 4+ HCP and 1 intermediate.)
X-suit Specs: (See the editor's doc file for more detail.)
"U" tells BB to bid "up-the-line" from Clubs to Spades.
"x,4+" says that if a suit does not match the "x" specs, it must have at least 4 cards.
When entering a number requirement for a suit, entering "<x" says that the suit is not an x-suit itself but that it must have fewer cards than the x-suit. You can also use <=x, >x, >=x.
Non = You are not vulnerable (opponents may or may not be)
Fav = Favorable (opponents are vulnerable, you are not)
Unfav = Unfavorable (you are, opponents are not)
Eq. = Equal (you both are, or both are not)
Eq+ = Equal or Favorable
If you leave the field blank, than any vulnerability is accepted.
2 = bidder is in 2nd seat
3 = bidder is in 3rd seat
4 = bidder is in 4th seat
F = bidder is in First or Second seat
T = bidder is in Third or Fourth seat.
Y = bidder is a passed hand
N = bidder is an unpassed hand
P = bidder's partner is a Passed hand
U = bidder's partner is an Unpassed hand
If the field is left blank, it means that position does not matter.
Cx = Control in suit bid
Bx = examples of "x": B2C, Bm = bid a minor, BM = bid a major
P = Pick a suit or pick a slam.
D = Decide on final contract. May involve Ace-asking, etc.
A = number of Aces
K = number of Kings
KC = number of key cards
1 = 1-round force
G = Game force.
PC = Pass or correct
SO = Sign-Off.
Hx = invites to game if partner can help in suit 'x' (x = HC, HD, HH or HS).
Here are some codes used:
H shows a help suit for partner.
S shows a short suit.
C is a cue bid of an Ace or King.
Abbreviations for some sources:
BD - Alan Truscott - Bidding Dictionary
Becker - newspaper column
Bul - ACBL Bridge Bulletin
BW - Bridge World
MB - Marty Bergen - P-S (Points Schmoints)
MH - Max Hardy (Bidding For The 21st Century)
ML - Mike Lawrence (various books)