🇬🇧English to English Lexicon

English to English Dictionary

Search any English word to get exact English definitions, pronunciations, and contextual examples.

Words Starting with "O"

Operational Issue
B2noun
English Meaning:

Operational Issue

A problem, malfunction, or bottleneck that disrupts the normal day-to-day functioning, processes, or procedures of an organization.

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Operational problem
B2noun
English Meaning:

Operational problem

An issue or difficulty that arises within the day-to-day running of an organization, system, or process, hindering efficiency or output.

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Optical Telescope
B2noun
English Meaning:

Optical Telescope

An instrument that gathers and focuses light, primarily in the visible light part of the spectrum, to create a magnified image of distant objects.

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Optimism
B2noun
English Meaning:

Optimism

Hopefulness and confidence about the future or the successful outcome of something.

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Optimization
B2noun
English Meaning:

Optimization

The action of making the best or most effective use of a situation or resource.

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Optometrist
B2noun
English Meaning:

Optometrist

A health care professional who examines eyes for visual defects and prescribes corrective lenses.

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Organelle
B2noun
English Meaning:

Organelle

Any of a number of organized or specialized structures within a living cell.

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Organization
B2noun
English Meaning:

Organization

An organized body of people with a particular purpose, such as a business, government agency, association, or charity.

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Organza
B2noun
English Meaning:

Organza

A thin, stiff, transparent fabric traditionally made of silk, now also made of synthetic fibers like polyester.

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Orientation
B2noun
English Meaning:

Orientation

The determination of the relative position of something or someone (especially oneself) in relation to the points of compass or other specific directions.

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Original
B2adjective
English Meaning:

Original

Present or existing from the beginning; first or earliest.

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Orthodox
B2adjective
English Meaning:

Orthodox

Following or conforming to traditional or generally accepted rules or beliefs, especially in religion.

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