a year and a day
Proposed by a contributor, not yet supported by evidence.
Meaning · English
a period of time used to establish a precedent or tradition
Nghĩa · Tiếng Việt
Khoảng thời gian dùng để thiết lập một tiền lệ hoặc truyền thống
Machine-translated — suggest a fix
Literally: a year and one day
Where it’s used:
Used
Widespread English
Sources & notes
Listed on Wikipedia “Irreversible binomial” (CC BY-SA 4.0, retrieved 2026-07-29). Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-30; pending editor spot-check.
Common questions
What does “a year and a day” mean?
a period of time used to establish a precedent or tradition Literally: a year and one day
Is “a year and a day” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.