Found 18,701 abbreviations starting with O:

O

Of

Miscellaneous

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O

Optimization

Miscellaneous

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O

Oldenburg

Community » Travel & Tourism

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O

Odor

Academic & Science » Chemistry

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O

Organism

Academic & Science » Biology

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O

Outrageous

Academic & Science » Psychology

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O

Omni

International » Latin

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O

Online

Computing » Networking

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O

Observation

Medical » Physiology

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O

Overcooked

Miscellaneous » Food

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O

Offset

Community » Media

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O

Overclocking

Computing » General

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O

Oldest

Community

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O

Optimism

Community

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O

Octant

Academic & Science » Mathematics

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O

Obliqueness

Academic & Science » Mathematics

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O

Occipito

Medical » Physiology

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O

Ovangkol

Academic & Science » Botany

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O

Omologato

International » Italian

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O

Oblivion

Academic & Science » Astronomy

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O

Ostrich

Medical » Veterinary

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O

Outpouring

Miscellaneous

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O

Ola

Miscellaneous » Names and Nicknames

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O

Odd

Academic & Science » Mathematics

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O

Oprah

Community » Famous

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