business double
SpecialistTechnical (Card Games)
Definition
Meaning
A bridge bidding convention where a double of an opponent's suit at a low level shows strength and interest in competing, rather than pure penalty.
A competitive call in contract bridge, primarily used after an opponent's opening bid in a suit, signalling a hand with values (typically 10+ points) and at least three-card support for the unbid major suits, inviting partner to bid their best suit. It is a 'takeout' double for suit contracts, distinct from a penalty double.
Linguistics
Semantic Notes
The term is almost exclusively used in the context of contract bridge. 'Business' here implies a serious, constructive bid, as opposed to an 'informatory' or 'light' double. It is a subset of the broader 'takeout double' family.
Dialectal Variation
British vs American Usage
Differences
The convention is understood and used identically in both bridge communities. The terminology is standard internationally, though minor regional bidding systems might influence its precise point requirements.
Connotations
Technical, precise, strategic. Signals a knowledgeable, competitive player.
Frequency
Common in intermediate to advanced bridge play worldwide; rare or non-existent in casual or beginner games.
Vocabulary
Collocations
Grammar
Valency Patterns
[Player] + business double + [of opponent's suit][A] business double + by + [Player]To + business double + [at the one level]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “It's business time.”
- “Double for takeout.”
Usage
Context Usage
Business
Not applicable in corporate contexts.
Academic
Only in game theory or bridge literature.
Everyday
Virtually never used.
Technical
The primary and almost exclusive context; bridge tournaments, lessons, and analysis.
Examples
By Part of Speech
verb
British English
- She decided to business double their one heart opening.
- With that shape, you must business double.
American English
- He business doubled their one spade bid.
- You should business double with that hand.
adverb
British English
- He bid business doubly, showing his strength.
- The hand was played business doubly.
American English
- She interpreted the cue business doubly.
adjective
British English
- It was a business double situation.
- He made a business double bid.
American English
- That's a textbook business double call.
- She had a business double hand.
Examples
By CEFR Level
- In bridge, a double can have different meanings.
- A business double asks your partner to choose a suit.
- After the opponent's opening bid of one diamond, her business double showed support for both majors and around twelve points.
- You need a good hand with short diamonds to make a business double here.
- The efficacy of a business double often hinges on partner's ability to differentiate between a competitive bid and a game-forcing hand.
- Modern bidding systems have nuanced the requirements for a business double, making it more shape-oriented than strictly point-count driven.
Learning
Memory Aids
Mnemonic
Think of 'business' as 'getting down to business' – it's a serious, purposeful double asking partner to choose a suit, not a speculative bid.
Conceptual Metaphor
COMMUNICATION IS A BUSINESS TRANSACTION (the double conveys specific, valuable information with an expected response).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate literally as 'бизнес-двойной' or 'деловой двойной'. The correct bridge term is 'дубль на вызов' or 'информационный дубль'.
- The word 'business' does not relate to commerce here.
Common Mistakes
- Using it as a penalty double.
- Making it with a very weak hand.
- Passing partner's business double with a very long suit in the opponent's bid suit.
Practice
Quiz
What is the primary purpose of a business double in bridge?
FAQ
Frequently Asked Questions
No, they are opposites. A business (takeout) double asks partner to bid, while a penalty double asks partner to pass, hoping to defeat the contract.
Typically, an opening hand (12+ points) with support for the unbid suits, especially the majors. The exact requirement can vary by partnership agreement.
It is most common and clear at the one-level. At higher levels (e.g., after a 2♠ opening), it becomes more dangerous and may have different interpretations.
Partner should usually bid their longest suit, even with very few points. With a very strong hand, they can jump or bid no trumps to show extra strength.