🇬🇧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"

Oasis
C1noun
English Meaning:

Oasis

A fertile or green spot in a desert, made so by the presence of water.

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On the spectrum
C1Adjective phrase
English Meaning:

On the spectrum

Describing a person who has been diagnosed with or exhibits traits associated with Autism Spectrum Disorder.

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Open a Pandora's box
C1verb phrase
English Meaning:

Open a Pandora's box

To perform an action that small or seemingly harmless in itself, but which unexpectedly generates a vast and uncontrollable cascade of severe problems and complications.

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Ophthalmology
C1noun
English Meaning:

Ophthalmology

The branch of medicine concerned with the study and treatment of disorders and diseases of the eye.

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Orthography
C1noun
English Meaning:

Orthography

The conventional spelling system of a language.

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Oscillation
C1noun
English Meaning:

Oscillation

Movement back and forth at a regular speed.

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Out-of-sight
C1adjective
English Meaning:

Out-of-sight

Exceedingly good, excellent, or remarkable; fantastic.

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Ovation
C1noun
English Meaning:

Ovation

A sustained and enthusiastic display of appreciation, approval, or acclaim, typically manifesting as loud and prolonged applause.

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Overpower
C1verb
English Meaning:

Overpower

To defeat or gain control over someone or something by superior force, strength, or numbers.

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Oversample
C1verb
English Meaning:

Oversample

To sample at a rate significantly higher than the Nyquist rate in signal processing, or to survey a larger or disproportionate number of respondents from a specific demographic group in statistics.

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organ-stop
C1noun
English Meaning:

organ-stop

A component of a pipe organ that controls a particular set of pipes of the same timbre, operated by a knob or lever.

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