Translation guide
Describes things that are consecutive, placed with backs facing each other, or happening one after another without a break.
He achieved three back-to-back championships.
The game was decided by back-to-back home runs.
Noun meaning 'consecutive' or 'successive'. Often used with numbers or in compound words.
The team lost five games back-to-back.
We've had back-to-back rainy days.
Adverb/noun meaning 'one after another' or 'in rapid succession'. Emphasizes the lack of pause between events.
Problems occurred back-to-back.
Slang term from mahjong meaning 'consecutive wins' or 'back-to-back'. Used casually for any repeated success or occurrence.
I got back-to-back wins today!
Describing two things positioned so that their backs are touching or facing opposite directions.
Literally 'with backs facing each other'. Used for physical positioning of people or objects.
They sat back-to-back.
Arrange the sofas back-to-back.
Attributive form meaning 'back-to-back' (adjacent with backs touching).
Noun meaning 'back-to-back' position. Less common than 背中合わせ.
The two stood back-to-back.
Describing meetings, appointments, or tasks scheduled immediately one after another.
Adverb meaning 'in rapid succession'. Suitable for back-to-back meetings or tasks.
I have back-to-back meetings today.
My schedule is packed back-to-back.
Means 'without a break'. Can be used for back-to-back activities.
The meetings continued back-to-back.
Loanword meaning 'nonstop'. Casual way to say back-to-back.
Work comes in back-to-back.
Do not translate 'back-to-back' literally as 背中から背中へ or similar. Use the appropriate Japanese expression based on context.
連続 is neutral and can be used in formal contexts. 立て続け emphasizes the rapid succession and is slightly more casual. For scheduling, 立て続け is very common.
He hit three back-to-back hits.
Back-to-back seats provide privacy.