11-Letter Nouns Starting With O

Here's the list of all the 514 11-Letter Nouns Starting With O in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Nouns (with Definitions and Examples)
opportunity
1. a possibility due to a favorable combination of circumstances
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orientation
1. the act of orienting
2. an integrated set of attitudes and beliefs
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observation
1. the act of making and recording a measurement
2. the act of observing; taking a patient look
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observatory
1. a building designed and equipped to observe astronomical phenomena
2. a structure commanding a wide view of its surroundings
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overlapping
1. covering with a design in which one element covers a part of another (as with tiles or shingles)
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11-Letter Nouns Starting With O