ket
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ket¹
- /kɛt/
Rhymes with -ɛt
Where it comes from
From bra-ket notation invented by Paul Dirac, from bracket.
noun kets
- A column vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate transpose of a bra (a row vector); a ket vector. Symbolised by |...〉. A particular ket, say #124;A#92;rangle, might be represented by a particular column vector. Its corresponding bra, #92;langleA#124;, would then be represented by the row vector which is the transpose conjugate of that column vector.
Opposite: bra
ket²
- /kɛt/
Rhymes with -ɛt
Where it comes from
Probably of Old Norse origin like kjǫt (“meat”), from Proto-Germanic *ketwą.
Compare Icelandic kjöt (“flesh”); akin to Swedish kött, Danish kød, and Norwegian kjøtt. The use of the term ket for "candy" or "sweets" probably derived from its use to describe sweet meats or as a deterrent to children.
noun kets
- Carrion; any filth.
- Sweetmeats.
- A sweet, treat or candy.
ket³
- /kɛt/
Rhymes with -ɛt
Where it comes from
Clipping of ketamine.
noun
- ketamine
ket⁴
- /kɛt/
Rhymes with -ɛt
noun
- matted wool
Ket⁵
Where it comes from
Learned borrowing from Ket кеʼт (keˀt, “human being”), via Russian.
noun Kets · Ket
- A member of a people of Krasnoyarsk Krai in Central Siberia, Russia.
proper noun
- A river in Russia, a tributary of the Ob.
-
The Yeniseian language of the Ket people.
Similar: Kettish
Ket⁶
Where it comes from
Borrowed from Dutch Ket, derived from Dutch ket, Middle Dutch *kitte, Proto-West Germanic *kitte.
noun Kets
-
A native or inhabitant of Brussels.
Similar: Brusseler
KET⁷
proper noun
- The station code of Kennedy Town in Hong Kong.
Thesaurus
noun
Opposite: bra
Translations
Talk about this word "ket." Wiktionary, via Micwyn, micwyn.com/word/ket. Accessed 6 Nov. 2026. ket. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/ket "ket." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/ket.Cite this
@misc{ket_2026,
title = {ket},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/ket},
urldate = {2026-11-06}
}
