# opus
## English
### Etymology

Borrowed from Latin opus.

### Pronunciation

* IPA: /ˈəʊpəs/, /ˈɒpəs/
* Audio (Southern England):(file)
* Rhymes: -əʊpəs, -ɒpəs

### Noun

opus (plural opuses or opera)
* (music) A work of music or set of works with a specified rank in an ordering of a composer's complete published works.
    Beethoven's "Razumovsky" Quartets, Op. 59, are considered by many to be the beginning of the Romantic era.
* A work, especially of art.
    The painter's last opus was a dedication to all things living, in a surprising contrast to all of his prior work.

#### Usage notes

The most common plural of opus in English is opuses. Some people use the Latin plural, opera. Opi is fairly common in the field of classical music, though mostly in informal contexts. The use of any of these three pluralizations may result in the speaker being corrected, though opi, above all, should be avoided in formal contexts. Outside of music, the word opus sees particularly frequent use in the expression magnum opus.
Abbreviations: op., Op.

#### Related terms

* opus incertum
* opus magnum
* opus operantis
* opus operatum
* opus quadratum
* opus spicatum

#### Translations
### Anagrams

* POUs, PUOs, Pous, pous, puso, soup

## Czech
### Etymology

Borrowed from Latin opus.

### Pronunciation

* IPA: [ˈopus]
* Hyphenation: opus

### Noun

opus m inan
* opus

#### Related terms

* kooperace
* kooperativní
* kooperovat
* manévr
* manévrovat
* opera
* operace
* operační
* operand
* operátor
* opereta
* operní
* operovat

### Further reading

* “opus”, in Příruční slovník jazyka českého (in Czech), 1935–1957
* “opus”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989

### Anagrams

* puso

## Dutch
### Etymology

Learned borrowing from Latin opus.

### Pronunciation

* IPA: /ˈoː.pʏs/
* Audio:(file)
* Hyphenation: opus

### Noun

opus n (plural opera or opussen, diminutive opusje n)
* opus

#### Related terms

* oeuvre
* opera

## Finnish
### Etymology

Borrowed from Latin opus.

### Pronunciation

* IPA: /ˈopus/, [ˈo̞pus̠]
* Rhymes: -opus
* Hyphenation: opus

### Noun

opus
* (colloquial) book
* (music) opus

#### Declension

Possessive forms of opus (Kotus type 39/vastaus, no gradation) :
first-person singular possessor
singular
plural
nominative
opukseni
opukseni
accusative
nom.
opukseni
opukseni
gen.
opukseni
genitive
opukseni
opusteni opuksieni
partitive
opustani
opuksiani
inessive
opuksessani
opuksissani
elative
opuksestani
opuksistani
illative
opukseeni
opuksiini
adessive
opuksellani
opuksillani
ablative
opukseltani
opuksiltani
allative
opukselleni
opuksilleni
essive
opuksenani
opuksinani
translative
opuksekseni
opuksikseni
abessive
opuksettani
opuksittani
instructive
comitative
—opuksineni
second-person singular possessor
singular
plural
nominative
opuksesi
opuksesi
accusative
nom.
opuksesi
opuksesi
gen.
opuksesi
genitive
opuksesi
opustesi opuksiesi
partitive
opustasi
opuksiasi
inessive
opuksessasi
opuksissasi
elative
opuksestasi
opuksistasi
illative
opukseesi
opuksiisi
adessive
opuksellasi
opuksillasi
ablative
opukseltasi
opuksiltasi
allative
opuksellesi
opuksillesi
essive
opuksenasi
opuksinasi
translative
opukseksesi
opuksiksesi
abessive
opuksettasi
opuksittasi
instructive
comitative
—opuksinesi
first-person plural possessor
singular
plural
nominative
opuksemme
opuksemme
accusative
nom.
opuksemme
opuksemme
gen.
opuksemme
genitive
opuksemme
opustemme opuksiemme
partitive
opustamme
opuksiamme
inessive
opuksessamme
opuksissamme
elative
opuksestamme
opuksistamme
illative
opukseemme
opuksiimme
adessive
opuksellamme
opuksillamme
ablative
opukseltamme
opuksiltamme
allative
opuksellemme
opuksillemme
essive
opuksenamme
opuksinamme
translative
opukseksemme
opuksiksemme
abessive
opuksettamme
opuksittamme
instructive
comitative
—opuksinemme
second-person plural possessor
singular
plural
nominative
opuksenne
opuksenne
accusative
nom.
opuksenne
opuksenne
gen.
opuksenne
genitive
opuksenne
opustenne opuksienne
partitive
opustanne
opuksianne
inessive
opuksessanne
opuksissanne
elative
opuksestanne
opuksistanne
illative
opukseenne
opuksiinne
adessive
opuksellanne
opuksillanne
ablative
opukseltanne
opuksiltanne
allative
opuksellenne
opuksillenne
essive
opuksenanne
opuksinanne
translative
opukseksenne
opuksiksenne
abessive
opuksettanne
opuksittanne
instructive
comitative
—opuksinenne
third-person possessor
singular
plural
nominative
opuksensa
opuksensa
accusative
nom.
opuksensa
opuksensa
gen.
opuksensa
genitive
opuksensa
opustensa opuksiensa
partitive
opustaan opustansa
opuksiaan opuksiansa
inessive
opuksessaan opuksessansa
opuksissaan opuksissansa
elative
opuksestaan opuksestansa
opuksistaan opuksistansa
illative
opukseensa
opuksiinsa
adessive
opuksellaan opuksellansa
opuksillaan opuksillansa
ablative
opukseltaan opukseltansa
opuksiltaan opuksiltansa
allative
opukselleen opuksellensa
opuksilleen opuksillensa
essive
opuksenaan opuksenansa
opuksinaan opuksinansa
translative
opuksekseen opukseksensa
opuksikseen opuksiksensa
abessive
opuksettaan opuksettansa
opuksittaan opuksittansa
instructive
comitative
—opuksineen opuksinensa :

#### Derived terms

* opusluettelo
* opusnumero

### Further reading

* “opus”, in Kielitoimiston sanakirja [Dictionary of Contemporary Finnish]‎ (in Finnish) (online dictionary, continuously updated), Kotimaisten kielten keskuksen verkkojulkaisuja 35, Helsinki: Kotimaisten kielten tutkimuskeskus (Institute for the Languages of Finland), 2004–, retrieved 2023-07-03

### Anagrams

* sopu, supo

## French
### Etymology

Borrowed from Latin opus. Doublet of œuvre and opéra.

### Pronunciation

* IPA: /ɔ.pys/
* Audio:(file)

### Noun

opus m (plural opus)
* opus, artistic work
    Synonym: œuvre

### Further reading

* “opus”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Galician
### Verb

opus
* (reintegrationist norm) first-person singular preterite indicative of opor

## Italian
### Etymology

Borrowed from Latin opus. Doublet of the inherited Old Italian uopo.

### Pronunciation

* IPA: /ˈɔ.pus/
* Rhymes: -ɔpus
* Hyphenation: ò‧pus

### Noun

opus m
* opus

## Latin
### Alternative forms

* op. (abbreviation)

### Etymology

From Proto-Italic *opos, from a Proto-Indo-European *h₃ép-os (“work”), from the verbal root *h₃ep- (“to work”), whence also ops and omnis. Cognates include Sanskrit अपस् (ápas, “work, action”).

### Pronunciation

* (Classical Latin) IPA: /ˈo.pus/, [ˈɔpʊs̠]
* (modern Italianate Ecclesiastical) IPA: /ˈo.pus/, [ˈɔːpus]

### Noun

opus n (genitive operis); third declension
* work, labor, accomplishment
    Synonyms: cōnātus, studium, opera, labor, cūra, intēnsiō, mōlēs, pulvis
** 8 CE, Ovid, Fasti 6.348:cessat opus; vacuae conticuēre molaeWork stops; the empty millstones have fallen silent.
* workmanship, artwork, work (of art, literature, etc.)
    Synonym: cūra
* need, necessity
    Synonyms: egestās, pēnūria, paupertās, dēsīderium, necessitās, inopia, indigentia, ūsus
    opus esse +nom. or +abl. of the thing needed ― to have need of, there is need of
    alicui opus est aliquo ― someone needs something
    opus est ― it is necessary
    mihi frumentum non opus est ― I do not need the grain
** 27 BCE – 25 BCE, Titus Livius, Ab Urbe Condita 26.1:Si supplemento opus esset, suppleret de legionibus quibus P. Cornelius pro praetore in Sicilia praeesset, […] If reinforcements were needed, he should supply them with the legions which Publius Cornelius, propraetor, was in charge of in Sicily, […]
** 1683 [1637], René Descartes, Geōmetria, section 1, page 1:Omnia Geōmetriae Problēmata facile ad hujusmodī terminōs redūcī possunt, ut deinde ad illōrum cōnstrūctiōnem, opus tantum sit rēctārum quārundam līneārum longitūdinem cognōscere.All Problems of Geometry can easily be reduced to such terms, that afterwards for their construction, there is only need [or it is only necessary] to get to know the length of certain straight lines.
* art, skill (when in the ablative)
    Synonyms: opera, ars, artificium
* (Ecclesiastical Latin) work (of God), deed, (miraculous) work
* (in adverbial phrases) extent
* (in Roman architecture) masonry, construction technique, construction material
    opus africanum, opus craticum, opus emplectum, opus gallicum, opus incertum, opus isodomum, opus latericium, opus mixtum, opus quadratum, opus reticulatum, opus vittatum, etc. ― various types thereof, see The Oxford Dictionary of Architecture, 2015, pp.536-537

#### Usage notes

The sense of "need" is used only in the nominative and accusative singulars.

#### Declension

Third-declension noun (neuter, imparisyllabic non-i-stem).

#### Derived terms

* magnopere
* magnum opus
* manuopus
* opera
* operistitium
* operor
* opusculum
* quantopere
* tantopere

#### Descendants

Note: see opera for descendants of the plural form.
* Gallo-Romance:
** Catalan: ops
** Old French: ues, oes, (part of) estovoir
*** French: œux, œusage (dialectal, Burgundy)
** Old Occitan: ops
*** Occitan: òps
* Italo-Romance:
** Italian: uopo
* Balkano-Romance:
** Romanian: op
* Ibero-Romance:
** Old Spanish: uebos, huebos
Borrowings:
* → Bulgarian: опус (opus)
* → Catalan: opus
* → Czech: opus
* → Dutch: opus
* → Finnish: opus
* → French: opus
* → English: opus
* → Italian: opus
* → Portuguese: opus
* → Portuguese: opus
* → Romanian: opus, op
* → Russian: о́пус (ópus)
* → Spanish: opus
* → Swedish: opus

### References

* “opus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* “opus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
* opus in Enrico Olivetti, editor (2003-2025), Dizionario Latino, Olivetti Media Communication
* "opus", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
* opus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
* Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co. to devote every spare moment to...; to work without intermission at a thing: nullum tempus intermittere, quin (also ab opere, or ad opus) to entreat earnestly; to make urgent requests: magno opere, vehementer, etiam atque etiam rogare aliquem to do work (especially agricultural): opus facere (De Senect. 7. 24) to take a task in hand, engage upon it: opus aggredi to take a task in hand, engage upon it: ad opus faciendum accedere a work of art: artis opus; opus arte factum or perfectum a master-piece of classical work: opus summo artificio[TR1] factum a master-piece of classical work: opus omnibus numeris absolutum to polish, finish a work with the greatest care: perpolire, limare diligenter librum, opus to contract for the building of something: opus locare to undertake the contract for a work: opus redimere, conducere tillage; cultivation: opus rusticum a town artificially fortified: oppidum manu (opere) munitum to set fire to the siege-works: ignem inferre operibus (B. C. 2. 14) in short; to be brief: ne multa, quid plura? sed quid opus est plura? (ambiguous) to strain every nerve, do one's utmost in a matter: omni ope atque opera or omni virium contentione eniti, ut (ambiguous) designedly; intentionally: de industria, dedita opera (opp. imprudens) (ambiguous) to put the finishing touch to a work: extrema manus accēdit operi (active extremam manum imponere operi) (ambiguous) to let out public works to contract: locare opera publica (ambiguous) to raise siege-works: opera facere
* De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 432

## Portuguese
### Verb

opus
* first-person singular preterite indicative of opor

## Romanian
### Etymology 1

Past participle of opune (based on pus, past participle of pune).

#### Pronunciation

* IPA: /oˈpus/
* Rhymes: -us

#### Adjective

opus m or n (feminine singular opusă, masculine plural opuși, feminine and neuter plural opuse)
* opposite, contrary
* reverse

##### Declension
#### Noun

opus
* the opposite, contrary
* reverse

##### Synonyms

* contrar

#### Participle

opus
* past participle of opune

### Etymology 2

Borrowed from Latin opus. Compare also the inherited doublet op, as well as operă.

#### Pronunciation

* IPA: /ˈo.pus/

#### Noun

opus n (plural opusuri)
* opus, musical composition or work