j
Proposed by a contributor, not yet supported by evidence.
Also seen as: js · J's · JJ
Sense 1
A term for a marijuana cigarette ('joint').
NounRegister: slang
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
An alternative version of i, the positive square root of -1; used in the context of electronics.
một phiên bản thay thế của i, căn số chính của -1, sử dụng trong điện tử
Machine-translated — suggest a fix
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
(plural Js or J's) A marijuana cigarette (abbreviation of joint).
NounRegister: slang
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 4
In the name of a serial publication: abbreviation of Journal.
Noun
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “j” mean?
A term for a marijuana cigarette ('joint').
Is “j” formal or informal?
j is generally slang.