ket

See also: Ket, két, kết, and -ket

English

Pronunciation

• IPA^(key): /kɛt/
• Rhymes: -ɛt

Etymology 1

From bra-ket notation invented by Paul Dirac, from bracket.

Noun

ket (plural kets)

1. (physics) A vector, in Hilbert space, especially as representing the state of a quantum mechanical system; the complex conjugate of a bra; a ket vector. Symbolised by |...〉.

   A particular ket, say $|A\rangle$, might be represented by a particular column vector. Its corresponding bra, $\langle A|$, would then be represented by the row vector which is the transpose conjugate of that column vector.

Translations

Translations

• Finnish: ket
• German: Ket n
• (deprecated template usage) {{trans-mid}}
• Polish: ket (pl) m

Etymology 2

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

ket (countable and uncountable, plural kets)

1. (Northern England) Carrion; any filth.
2. (Northumbria) Sweetmeats.
3. (Wearside) A sweet, treat or candy.

References

• The Collaborative International Dictionary of English v.0.48 on DICT.org
• Northumberland Words, English Dialect Society, R. Oliver Heslop, 1893–4
• Template:R:Northeast Dialect 2005
• “Ket”, in Palgrave’s Word List: Durham & Tyneside Dialect Group‎^[1], archived from the original on 2024-09-05, from F[rancis] M[ilnes] T[emple] Palgrave, A List of Words and Phrases in Everyday Use by the Natives of Hetton-le-Hole in the County of Durham […] (Publications of the English Dialect Society; 74), London: Published for the English Dialect Society by Henry Frowde, Oxford University Press, 1896, →OCLC.

Etymology 3

Abbreviation.

Noun

ket (uncountable)

1. (colloquial) ketamine

Etymology 4

Noun

ket (uncountable)

1. (Scotland) matted wool

---

Breton

Pronunciation

• IPA^(key): /ked/ before a vowel.
• IPA^(key): /ke/ before a consonant.

Adverb

ket

1. not

   N'ouzon ket petra eo. — I don't know what it is.

Usage notes

Together with ne: ne ... ket. This is the same structure as French ne ... pas.

---

Dutch

Noun

ket m (plural ketten, diminutive ketje n)

1. (Belgium, dialect) a kid
2. (Belgium, dialect) a young guy

Derived terms

• Ketnet

---

Icelandic

Alternative forms

• (common) kjöt

Etymology

See kjöt.

Pronunciation

• IPA^(key): /cʰɛːt/
• Rhymes: -ɛːt

Noun

ket n (genitive singular kets, no plural)

1. (regional, dated) meat

---

Ilocano

Conjunction

ket

1. and

---

Tocharian B

Alternative forms

• kete

Etymology

Genitive form of kᵤse (“who, which”).

Pronoun

ket

1. whose, to whom, for whom

Further reading

• Adams, Douglas Q. (2013) “ket”, in A Dictionary of Tocharian B: Revised and Greatly Enlarged (Leiden Studies in Indo-European; 10), Amsterdam, New York: Rodopi, →ISBN, pages 203-204