A city in southern Poland in Silesia.

/ˈɒpənˌhaɪmər/
A surname from German.

/oʊˈpæsɪti/
(uncountable) The state or quality of being opaque, not allowing light to pass through.

/ˈoʊpəl/, /ˈəʊpəl/
(mineral) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.

/oʊˈpeɪk/, /ɐʉˈpæɪk/, /əʉˈpæɪk/, /əʊˈpeɪk/, /[ɐʉˈpæɪk]/
Allowing little light to pass through, not translucent or transparent.

/ˈoʊ.pən/, /ˈɒ.pɪn/, /ˈəʉ.pən/, /ˈəʊ.pən/

1. (comparable) Receptive.
   1. otevřen
   2. otevřený
2. 1. (not comparable) Actively conducting or prepared to conduct business.
   2. Not settled; not decided or determined; not withdrawn from consideration.
   3. (mathematics, topology, of a set) Which is part of a predefined collection of subsets of X, that defines a topological space on X.
   otevřený
3. (not comparable) Public.
   1. veřejný
   2. otevřený

/ˈoʊ.pən/, /ˈɒ.pɪn/, /ˈəʉ.pən/, /ˈəʊ.pən/

1. otevírat
2. (computing, transitive, intransitive) To connect to a resource (a file, document, etc.) for viewing or editing.
   1. otevřít
   2. otevírat
3. (obsolete) To disclose; to reveal; to interpret; to explain.
   1. otevřít
   2. otevřít se
   3. otevírat

A letter addressed to one person, or more, but published (as for example in a newspaper) for the public to read.

Any dish consisting of only one slice of bread, with any topping.

open up (especially referring to doors)

A museum where the exhibitions are located outdoors.

(finance) A collective investment scheme which can issue and redeem shares at any time.

Gaping in surprise, wonder or astonishment.

/ˈəʊpn̩.bɪl/
Either of two species of bird in the genus Anastomus of the stork family Ciconiidae, with a distinctive gap between the mandibles of the closed bill.

/ˈoʊ.pən.ɚ/, /ˈəʉ.pən.ə/, /ˈəʉp.nə/, /ˈəʊ.pən.ə/
A device that opens something; specifically a tin-opener/can-opener, or a bottle opener.

/ˈoʊ.pə.nɪŋ/, /ˈəʉp.nɪŋ/, /ˈəʊ.pə.nɪŋ/

1. An act or instance of making or becoming open.
   otevření
2. A gap permitting passage through.
   otvor

The regular times of day when a shop, office or similar is open to the public.

(rugby) a forward position in rugby union, usually number 7.

/ˈoʊpənwɝk/, /ˈəʊpənwɜː(ɹ)k/
Any of several forms of metalwork or needlework having decorative openings.

/ˈɑ.pɚ.ə/, /ˈɑ.pɹə/, /ˈɑp.ə.ɹə/, /ˈɒp.ə.ɹə/, /ˈɒp.ɹə/, /ˈɔp.ə.ɹə/, /ˈɔp.ɹə/

1. (music) A theatrical work, combining drama, music, song and sometimes dance.
2. (music) The score for such a work.
3. (music) The genre of such works, the art of composing operas.
4. A company dedicated to performing such works.

A room in a hospital used for performing surgical operations.

/ˈɑpəˌɹeɪtɪŋ ˌsɪstəm/, /ˈɒpəˌɹeɪtɪŋ ˌsɪstəm/
(computing, software) Software that is designed for controlling the allocation and the use of various hardware resources to tasks and remote terminals.

/ˌɑ.pəˈɹeɪ.ʃən/, /ˌɑ.pɚˈeɪ.ʃən/, /ˌɒp.əˈɹeɪ.ʃən/

1. (uncountable) The method by which a device performs its function.
   1. provoz
   2. operace
2. (uncountable) The method or practice by which actions are done.
   postup
3. 1. (countable) A planned undertaking.
   2. (countable, medicine) A surgical procedure.
   3. (military, countable) A military campaign (e.g. Operation Desert Storm).
   operace
4. (computing, logic, mathematics, countable) A procedure for generating a value from one or more other values (the operands).
   1. postup
   2. operace

A showing of something — such as a variable, term, or object — in terms of the specific process or set of validation tests used to determine its presence and quantity.

1. operacionální definice
2. operační definice

/ˈɑpəˌɹeɪtɚ/, /ˈɒpəˌɹeɪtə/
(ellipsis, mining) The company that operates a mine; often the same one that owns the mine.

/oʊˈpɝ.kjə.ləm/, /əʊˈpɜː.kjʊ.ləm/
(zoology) A covering flap in animals, such as a gill cover.

1. skřele
2. žaberní víčko

/ɒpəˈɹɛtə/
(music) A lighter version of opera with a frivolous story and spoken dialogue. [from Template:SAFESUBST: c.]

/ˈɒfɪklaɪd/, /ˈɔfɪklaɪd/

1. ofikleida
2. ofiklejda

Pertaining to ophthalmology.

/ˌɑp.θə(l)ˈmɑ.lə.d͡ʒɪst/, /ˌɒf.θælˈmɒ.lə.d͡ʒɪst/, /ˌɔf.θælˈmɑ.lə.d͡ʒɪst/, /ˌɔf.θə(l)ˈmɑ.lə.d͡ʒɪst/
A medical doctor specializing in the eye: deficiencies of vision requiring correction, and diseases. Compare optometrist.

1. oftalmolog
2. oční lékař

/ˌɑfθə(l)ˈmɑləd͡ʒi/, /ˌɒfθælˈmɒləd͡ʒi/, /ˌɒfθə(l)ˈmɒləd͡ʒi/, /ˌɒpθælˈmɒləd͡ʒi/, /ˌɒpθə(l)ˈmɒləd͡ʒi/
(medicine) The anatomy, functions, pathology, and treatment of the eye.

(ophthalmology) An instrument for examining the interior of the eye (that is, for ophthalmoscopy).

/ˈoʊpi.ət/, /ˈoʊpiˌeɪt/, /ˈəʊpi.ət/, /ˈəʊpiˌeɪt/
(pharmacology) A drug, hormone or other substance derived from or related to opium.

/oʊˈpaɪn/, /ə(ʊ)ˈpaɪn/
(intransitive, transitive) To express an opinion; to state as an opinion; to suppose, consider (that).

1. prohlásit
2. vyjádřit názor
3. vyjádřit se
4. vyslovit názor

/əˈpɪnjən/, /ɵˈpin(ɪ)jən/

1. A belief, judgment or perspective that a person has formed, either through objective or subjective reasoning, about a topic, issue, person or thing.
   1. názor
   2. mínění
   3. posudek
2. (European Union, _, law) A judicial opinion delivered by an Advocate General to the European Court of Justice where he or she proposes a legal solution to the cases for which the court is responsible.
   stanovisko

/ˈoʊ.pi.əm/, /ˈoʊp.jəm/, /ˈəʊ.pi.əm/

1. (uncountable) A yellow-brown, addictive narcotic drug obtained from the dried juice of unripe pods of the opium poppy, Papaver somniferum, and containing alkaloids such as morphine, codeine, and papaverine.
2. (by extension, countable) Anything that numbs or stupefies.

/əˈpɑpənæks/, /əˈpɒpənaks/
(obsolete) A gum resin obtained from the root of Opopanax chironium, formerly used in medicine.

1. opopanax
2. opoponax

/əˈpɑsəm/, /əˈpɒsəm/, /ˈpɑsəm/
Any American marsupial of the family Didelphidae in the order Didelphimorphia.

/əˈpəʊnənt/

1. protihráč
2. One who opposes another; one who works or takes a position against someone or something; one who attempts to stop the progress of someone or something.
   1. protivník
   2. odpůrce
   3. odpůrkyně
   4. oponent
   5. protivnice

(Marxism) The political line of Communist Party members who zealously support the Party, but whose trait is that they yield to the mood of the moment, they are unable to resist what is fashionable, leading to the sacrifice of the permanent and essential interests of the Party to the momentary and minor interests.

/ˌɒpə(ɹ)ˈtjuːnɪst/
Someone who takes advantage of any opportunity to advance their own situation, placing expediency above principle.

/-ˈt͡ʃuː.-/, /əˈpɔ(r)tʃʊnɪʈi/, /ˈɔpə(r)tʃʊnɪʈi/, /ˌɑ.pɚˈt(j)u.nə.ti/, /ˌɒp.əˈtjuː.nɪ.tɪ/, /[-ɾi]/

1. A chance for advancement, progress or profit.
2. A favorable circumstance or occasion.

1. příležitost
2. šance

(economics) The cost of an opportunity forgone (and the loss of the benefits that could be received from that opportunity); the most valuable forgone alternative.

1. náklady obětované příležitosti
2. náklady ušlé příležitosti

/əˈpoʊz/, /əˈpəʊz/, /[ʔəpʰoʊːz̥]/
To attempt to stop the progression of; to resist or antagonize by physical means, or by arguments, etc.; to contend against.

/ˈoʊpəsɪt/, /ˈɑp(ə)sɪt/, /ˈɑpəzɪt/, /ˈɒpəsət/, /ˈɒpəsɪt/, /ˈɒpəzət/, /ˈɒpəzɪt/, /ˈɔpəsɪt/, /ˈɔpəzɪt/, /[ˈɔ̟pəsət]/, /[ˈɔ̟pəzət]/

1. Located directly across from something else, or from each other.
   1. druhý
   2. opačný
   3. protilehlý
2. 1. Facing in the other direction.
   2. Of either of two complementary or mutually exclusive things.
   opačný

/ˈoʊpəsɪt/, /ˈɑp(ə)sɪt/, /ˈɑpəzɪt/, /ˈɒpəsət/, /ˈɒpəsɪt/, /ˈɒpəzət/, /ˈɒpəzɪt/, /ˈɔpəsɪt/, /ˈɔpəzɪt/, /[ˈɔ̟pəsət]/, /[ˈɔ̟pəzət]/

1. Something opposite or contrary to something else.
2. An antonym.

1. opak
2. protiklad

/ˈoʊpəsɪt/, /ˈɑp(ə)sɪt/, /ˈɑpəzɪt/, /ˈɒpəsət/, /ˈɒpəsɪt/, /ˈɒpəzət/, /ˈɒpəzɪt/, /ˈɔpəsɪt/, /ˈɔpəzɪt/, /[ˈɔ̟pəsət]/, /[ˈɔ̟pəzət]/
Facing, or across from.

1. naproti
2. proti

(attributively) Heterosexual, or otherwise relating to a relationship between a woman and a man.

/əˈpozɪʃən/, /ˈɔpɵzɪʃən/, /ˌɑ.pəˈzɪʃ.ən/, /ˌɒp.əˈzɪʃ.ən/

1. (astronomy) The apparent relative position of two celestial bodies when one is at an angle of 180 degrees from the other as seen from the Earth.
2. (politics) A political party or movement opposed to the party or government in power.

/əˈpɹɛs/
(transitive) To keep down by unjust force.

/əˈpɹɛʃən/

1. The exercise of authority or power in a burdensome, cruel, or unjust manner.
2. The act of oppressing, or the state of being oppressed.

Someone who oppresses another or others.

1. utlačovatel
2. utiskovatel

/əˈpɹoʊ.bɹi.ə/, /əˈpɹoʊ.bɹi.əm/, /əˈpɹəʊ.bɹɪ.ə/, /əˈpɹəʊ.bɹɪ.əm/
Disgrace or bad reputation arising from exceedingly shameful behaviour; ignominy. [from late 17th c.]

/əˈpjuːnəbəl/, /əˈpʌɡnəbəl/
(obsolete, rare) Disputable, contestable, refutable, capable of being oppugned.

1. napadnutelný
2. sporný

/əˈpʌɡnəns/
(obsolete) Dislike, aversion, animus; opposition: the fact, condition, or instance of being at variance, opposed, hostile, or adverse.

(historical) The period of Russian history between 1565 and 1572 during which Tsar Ivan the Terrible instituted a domestic policy of secret police, mass repressions, public executions, and confiscation of land from Russian aristocrats.

/ˈɑp.tɪk/, /ˈɒp.tɪk/
(optics, relational) Of, or relating to optics or optical instruments.

(neuroanatomy) Each of the second pair of cranial nerves that carry visual information from the retina to the brain.

The inflammation of the optic nerve that may cause a complete or partial loss of vision.

/ˈɑptɪkəl/, /ˈɒptɪkəl/

1. Designed to assist or enhance sight
   1. optický
   2. zrakový
2. 1. Of or relating to visible light.
   2. Incorporating light-sensitive devices.
   optický

(computing) The electronic identification and digital encoding of printed or handwritten characters by means of an optical scanner and specialized software.

(British spelling) A thin, transparent, flexible fibre, made of glass or plastic, used for transmitting light.

An image that is visually deceptive or misleading.

A person who makes, dispenses or sells lenses, spectacles.

/ˈɑptɪks/, /ˈɒptɪks/
(physics) The physics of light and vision: basic optical science.

/ˈɑptɪməl/, /ˈɒptɪməl/

The property of being optimal.

1. optimalita
2. optimálnost

/ˈɑptɪmɪzəm/, /ˈɒptɪmɪzəm/
a tendency to expect the best, or at least, a favourable outcome

/ˈɑptɪmɪst/, /ˈɒptɪmɪst/
A person who expects a favourable outcome.

/ˌɑptɪˈmɪstɪk/, /ˌɒptɪˈmɪstɪk/

1. Expecting the best in all possible ways.
2. (computing) Allowing other processes to perform transactions on the same data at the same time, and checking for conflicts only when changes need to be written back.

/ˌɑptəmaɪˈzeɪʃən/
The design and operation of a system or process to make it as good as possible in some defined sense.

/ˈɑptɪmaɪz/, /ˈɒptɪmaɪz/

1. (transitive) To make (something) optimal.
2. (transitive) To make (something) more efficient, such as a computer program.

/ˈɑpʃən/, /ˈɒpʃən/

1. One of a set of choices that can be made. [from 19th c.]
   1. možnost
   2. volba
   3. výběr
2. (finance, legal) A contract giving the holder the right to buy or sell an asset at a set strike price; can apply to financial market transactions, or to ordinary transactions for tangible assets such as a residence or automobile. [from mid-18th c.]
   opce

/ˈɑp.ʃə.nəl/, /ˈɒp.ʃə.nəl/
Not compulsory; left to personal choice; elective.

Quality or state in which choice or discretion is allowed.

/ɑpˈtɑmətɹɪst/, /ɒpˈtɒmətɹɪst/
A person trained and skilled in examining and testing the eyes for defects, in order to prescribe corrective lenses or treatment.

/ɒpˈtɒmɪtri/, /ɔpʈo.mɛʈri/
The art and science of vision and eye care.

/ˈɒpjʊlənt/

1. Luxuriant, and ostentatiously magnificent.
   1. honosný
   2. okázalý
2. Rich, sumptuous and extravagant.
   1. bohatý
   2. zámožný

/ˈɒpəs/, /ˈəʊpəs/
(music) A work of music or set of works with a specified rank in an ordering of a composer's complete published works.