different between theta vs cos

English

Etymology

Borrowed from Ancient Greek ???? (thêta).

Pronunciation

• (UK) IPA^(key): /??i?t?/
• (US) IPA^(key): /??e?t?/

Noun

theta (plural thetas)

1. The eighth letter of the Modern Greek alphabet, ninth in Old Greek: ?, ?.
2. (mathematics) The measure of an angle.
3. (aviation, by extension) Pitch angle; the angle between an aircraft's longitudinal axis and the horizontal plane.
4. (finance) The sensitivity of the value of a derivative with respect to time; the "time decay".
5. (biology) Designating a level of brain activity as measured by electroencephalography having a frequency of between four and seven cycles per second (associated with drowsiness in adults).
   • 2018, Meghan O'Gieblyn, "The Most Unread Book Ever Acclaimed", The Paris Review, 19 September:

     The reader is less likely to throw the book down in a fit of disgust than she is to be lulled into a theta state, a highway hypnosis induced by page after page of incantatory prose.

6. (phonology) The voiceless dental fricative represented by ?.

Hypernyms

• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

Coordinate terms

(pitch angle of an aircraft):

• alpha
• beta
• gamma

Derived terms

• theta wave
• thetan

Translations

Descendants

• ? Malay: teta

Catalan

Etymology

From the Ancient Greek ???? (thêta).

Pronunciation

• (Balearic, Central) IPA^(key): /?t?.t?/
• (Valencian) IPA^(key): /?t?.ta/

Noun

theta f (plural thetes)

1. theta; the Greek letter ? (lowercase ?).

Further reading

• “theta” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “theta” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “theta” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

Czech

Alternative forms

• théta

Etymology

From the Ancient Greek ???? (thêta).

Pronunciation

• IPA^(key): [?t?ta]

Noun

theta n

1. theta (Greek letter)

Italian

Etymology

From the Ancient Greek ???? (thêta).

Pronunciation

• IPA^(key): /?te.ta/

Noun

theta m or f (invariable)

1. theta (Greek letter)

Pali

Alternative forms

Adjective

theta

1. reliable
2. trustworthy

Portuguese

Noun

theta f (plural thetas)

1. Obsolete spelling of teta (used in Portugal until September 1911 and died out in Brazil during the 1920s).

Spanish

Etymology

From Ancient Greek ???? (thêta).

Pronunciation

• IPA^(key): /?teta/, [?t?e.t?a]

• IPA^(key): /?tita/, [?t?i.t?a]

Noun

theta f (plural thetas)

1. theta; the Greek letter ?, ?

   Synonyms: zeta, tita

Translingual

Symbol

cos

1. (trigonometry) cosine.

English

Etymology 1

From the name of the island Cos, whence it was introduced.

Pronunciation

• (General American) IPA^(key): /k?s/
• (Received Pronunciation) IPA^(key): /k?s/
• Rhymes: -?s

Noun

cos (plural coses)

1. A variety of lettuce with long, crisp leaves.

Translations

Etymology 2

From 'cause, an aphetic form of because.

Pronunciation

• (Received Pronunciation) IPA^(key): /k?z/; (unstressed) IPA^(key): /k?z/
• (General American) IPA^(key): /k?z/; (unstressed) IPA^(key): /k?z/

Conjunction

cos

1. (informal, Britain, Ireland, South Africa, African-American Vernacular) because

Translations

Etymology 3

Clipping of cousin

Pronunciation

• IPA^(key): /k?z/

Noun

cos (plural cosses)

1. (informal, African-American Vernacular) A cousin, cuz.

Etymology 4

Noun

cos

1. plural of co

See also

• Wikipedia article on Cos
• Wikipedia article on cosine

Anagrams

• CSO, OCS, OCs, OSC, SCO, SOC, SoC, Soc, Soc., soc, soc.

Aromanian

Alternative forms

• cosu

Etymology

From Vulgar Latin *c?s?, from Latin consu?. Compare Romanian coase, cos.

Verb

cos (third-person singular present indicative coasi/coase, past participle cusutã)

1. I sew.

Related terms

• coasiri/coasire
• cusut

Catalan

Etymology

From Old Occitan cors, from Latin corpus, from Proto-Indo-European *?rep-. Doublet of the borrowing corpus.

Pronunciation

• (Balearic, Central, Valencian) IPA^(key): /?k?s/

Noun

cos m (plural cossos)

1. body (physical structure of a human or animal)
2. body, corpse

   Synonym: cadàver

Derived terms

• anticòs
• cos celeste
• cos pituïtari

Further reading

• “cos” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “cos” in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana.
• “cos” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “cos” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Chinese

Verb

cos

1. (ACG, informal) to cosplay

Derived terms

Friulian

Etymology

From Slovene kòš, from Proto-Slavic *koš?.

Noun

cos m (plural cos)

1. basket

   Synonyms: gei, geùt, ceste

Galician

Etymology

From contraction of preposition con (“with”) + masculine plural definite article os (“the”)

Contraction

cos m pl (masculine co, feminine coa, feminine plural coas)

1. with the

Irish

Alternative forms

• cois (Cois Fharraige)

Etymology

From Old Irish cos, from Proto-Celtic *koxs? (cf. Welsh coes), ultimately from Proto-Indo-European *ko?s-, whence also Latin coxa (“hip”).

Pronunciation

• IPA^(key): /k?s?/

Noun

cos f (genitive singular coise, nominative plural cosa)

1. foot
2. leg

Declension

• Dual: dhá chois

Derived terms

Mutation

References

• Gregory Toner, Maire Ní Mhaonaigh, Sharon Arbuthnot, Dagmar Wodtko, Maire-Luise Theuerkauf, editors (2019) , “cos”, in eDIL: Electronic Dictionary of the Irish Language
• “cos” in Foclóir Gae?ilge agus Béarla, Irish Texts Society, 2nd ed., 1927, by Patrick S. Dinneen.
• "cos" in Foclóir Gaeilge–Béarla, An Gúm, 1977, by Niall Ó Dónaill.

Latin

Etymology

From Proto-Italic *k?tis, from Proto-Indo-European *?eh?- (“to sharpen”). Cognate with Latin catus (“clever, cunning”), caut?s (“pointed rock”), cuneus (“wedge”) and Ancient Greek ????? (kônos, “cone”).

Pronunciation

• (Classical) IPA^(key): /ko?s/, [ko?s?]
• (Ecclesiastical) IPA^(key): /kos/, [k?s]

Noun

c?s f (genitive c?tis); third declension

1. whetstone

Declension

Third-declension noun.

Derived terms

• c?t?ria

Descendants

• Catalan: cot
• French: queux
• Italian: cote, cotano
• Romanian: cute
• Sicilian: cuti
• Spanish: codón

References

• cos in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• cos in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• cos in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• cos in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• cos in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly

Middle English

Alternative forms

• cus, kis, kys

Etymology

From Old English coss, from Proto-West Germanic *koss. Forms with /i/ and /u/ are influenced by kissen.

Pronunciation

• IPA^(key): /k?s/, /kus/, /kis/

Noun

cos (plural cosses or cossen)

1. a kiss (action of kissing)

   Synonym: kissyng

Descendants

• English: kiss
• Yola: kesse

References

• “cos, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.

Old English

Etymology

From Proto-West Germanic *koss.

Pronunciation

• IPA^(key): /kos/

Noun

cos m

1. Alternative form of coss

Old French

Noun

cos m

1. inflection of cop:
   1. oblique plural
   2. nominative singular

Old Irish

Etymology

From Proto-Celtic *koxs? (cf. Welsh coes), ultimately from Proto-Indo-European *ko?s-. Cognate with Latin coxa (“hip”).

Pronunciation

• IPA^(key): /kos/

Noun

cos f

1. foot
2. leg

Inflection

Descendants

• Irish: cos
• Manx: cass
• Scottish Gaelic: cas

Mutation

References

• Gregory Toner, Maire Ní Mhaonaigh, Sharon Arbuthnot, Dagmar Wodtko, Maire-Luise Theuerkauf, editors (2019) , “cos”, in eDIL: Electronic Dictionary of the Irish Language

Portuguese

Pronunciation

• (Brazil) IPA^(key): /kus/, /kos/

Contraction

cos

1. (colloquial) Contraction of com os.

Romanian

Pronunciation

• Rhymes: -os

Verb

cos

1. first-person singular present indicative of coase
2. first-person singular present subjunctive of coase
3. third-person plural present indicative of coase