back-to-back

English

Pronunciation

• IPA^(key): /ˌbæk.təˈbæk/

Adjective

back-to-back (not comparable)

1. Sequential or consecutive.

   Ruth and Gehrig hit back-to-back home runs.

   They sat through two back-to-back movies.

   • 2011 February 12, Les Roopanarine, “Birmingham 1 - 0 Stoke”, in BBC‎^[1]:

     An injury-time goal from Nikola Zigic against an obdurate Stoke side gave Birmingham back-to back Premier League wins for the first time in 14 months.

2. With one's back facing that of somebody else.
3. (physics, by extension) Emerging in exactly opposite directions.
   • 2009, R. Fiore, Alessandro Papa, Igor Ivanov, Jacques Soffer, Diffraction 2008: International Workshop on Diffraction in High Energy Physics, Amer Inst of Physics:

     Seen in laboratory frame the photon-jet pair is not any longer back-to-back and the energy balance is distorted.

   • 2000, S. Söldner-Rembold, Photon '99: Proceedings of the International Conference on the Structure and Interactions of the Photon, Including the 12th International Workshop on Photon-Photon Collisions, Freiburg, Germany, 23-27 May 1999:

     This produces two back-to-back jets of hadrons that dominate the inclusive high energy cross-section.

   • 2015, Thomas Schörner-Sadenius, The Large Hadron Collider: Harvest of Run 1, Springer, →ISBN, page 392:

     Photons at leading order are produced back-to-back with an associated parton with nearly identical transverse momenta.

   • 1992, David Shaw Brown, A Comparison of High Transverse Momentum Direct Photon and Neutral Pion Events in Negative Pion and Proton-nucleus Collisions at 31.5 GeV Center of Mass Energy:

     In the rest frame of the $\pi ^{0}$ the photons emerge back-to-back isotropically.

4. (of a house) Having a party wall at the rear,

   We lived in a row of back-to-back houses.

5. (poker slang) Synonym of wired (“being a pair in seven card stud with one face up and one face down”).

Translations

sequential or consecutive

• Finnish: peräkkäinen (fi), perättäinen (fi)
• Italian: consecutivo (it)
• Norwegian: back-to-back
• Russian: оди́н за одним (ru) (odín za odnim), друг за другом (ru) (drug za drugom), поочерёдно (ru) (poočerjódno)
• Spanish: consecutivo (es)
• Turkish: arka arkaya (tr)
• Ukrainian: послідо́вний (poslidóvnyj)

with one's back facing somebody else's back

• Finnish: seläkkäinen
• French: dos à dos (fr)
• Navajo: ghąąjįʼ
• Ukrainian: спина́ в спи́ну (spyná v spýnu)

(physics) emerging in exactly opposite directions

(house) having a party wall at the rear

• Spanish: espaldera f

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked‌: "adverbs or adjectives?"

• Romanian: ^{(please verify)} spate în spate
• Turkish: ^{(please verify)} sırt sırta (tr)

Adverb

back-to-back (not comparable)

1. Alternative form of back to back
   • 2021 December 15, Paul Clifton, “There is nothing you can do”, in RAIL, number 946, page 37:

     A ScotRail Driver: [...] A good friend of mine overshot two stations back-to-back a couple of years ago. He tried to stop at one station and slid by it. Tried to stop at the next station. He slid by that, too.

Noun

back-to-back (plural back-to-backs)

1. A house with a party wall at the rear.
2. (oil industry) One of a pair of rig workers who are rostered on alternately.
   • 2005, Paul Carter, Don't Tell Mum I Work on the Rigs, Crows Nest: Allen and Unwin, page 101:

     "He's been standing-by in town for the last week, talk to his back-to-back on the rig in the morning." ("Back-to-back" is the man on the rig who does your job when you're not there.