Words Starting with O

Explore the meanings and uses of words starting with the letter O.

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Word List

Obedient: (adjective) Willing to comply with orders or requests.
Example: The obedient dog followed every command given by its owner.

Obscure: (adjective) Not discovered or known about; (verb) to make unclear.
Example: The meaning of the poem was obscure to many readers.

Obsolete: (adjective) No longer produced or used; out of date.
Example: Many technologies become obsolete quickly in today’s fast-paced world.

Obtain: (verb) To get or acquire something.
Example: She managed to obtain a copy of the rare book.

Occasion: (noun) A particular time or instance of an event; (verb) to cause or create.
Example: We met on several occasions to discuss the project.

Occupy: (verb) To take up space or time; to reside or have one’s place in.
Example: The army will occupy the area until the situation stabilizes.

Odor: (noun) A distinctive smell, especially an unpleasant one.
Example: The odor of the garbage filled the room.

Omit: (verb) To leave out or exclude something.
Example: Please omit any unnecessary details from your report.

Omnipotent: (adjective) Having unlimited power; able to do anything.
Example: In many religions, God is considered to be omnipotent.

Omniscient: (adjective) Knowing everything; having infinite knowledge.
Example: The story is narrated by an omniscient narrator who knows the thoughts of all characters.

Onset: (noun) The beginning or start of something, especially something unpleasant.
Example: The onset of winter brought colder temperatures and snow.

Opaque: (adjective) Not able to be seen through; not transparent.
Example: The glass was opaque, preventing anyone from seeing inside.

Optimistic: (adjective) Hopeful and confident about the future.
Example: Her optimistic attitude helped boost the team’s morale.

Orchestrate: (verb) To arrange or direct the elements of a situation to produce a desired effect.
Example: He was able to orchestrate the event seamlessly.

Ordinary: (adjective) With no special or distinctive features; normal.
Example: She lived an ordinary life, filled with simple pleasures.

Organize: (verb) To arrange systematically; to order.
Example: He helped organize the community event successfully.

Original: (adjective) Present or existing from the beginning; not a copy; (noun) a work created firsthand.
Example: The original painting was displayed in the museum.

Oscillate: (verb) To move or swing back and forth in a regular rhythm.
Example: The fan began to oscillate, providing a cool breeze.

Ostracize: (verb) To exclude someone from a society or group.
Example: The students decided to ostracize him after the incident.

Outcome: (noun) The result or effect of an action or situation.
Example: The outcome of the experiment was unexpected.

Outlook: (noun) A person’s point of view or general attitude toward life; the likely future situation.
Example: His positive outlook on life influenced those around him.

Overwhelm: (verb) To bury or drown beneath a huge mass; to be too much to handle.
Example: She felt overwhelmed by the amount of work she had to complete.

Ovation: (noun) A sustained and enthusiastic show of appreciation from an audience.
Example: The performer received a standing ovation after the show.

Oxymoron: (noun) A figure of speech in which contradictory terms appear in conjunction.
Example: The phrase “deafening silence” is an example of an oxymoron.