Idioms beginning with O

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go off at a tangent

Meaning: To suddenly change the subject in conversation, moving away from the main topic.

Example: During the meeting, he went off at a tangent and started talking about his holiday instead of the project. Read more ➺


open book

Meaning: Someone easy to understand because they are open and honest.

Example: Everyone knows what Maria is thinking, she is an open book. Read more ➺


out of the way

Meaning: Unusual, strange, or odd in behavior or character.

Example: His reaction was a bit out of the way, as if he had never seen such a thing before. Read more ➺


of the first water

Meaning: Something of the highest quality or excellence.

Example: Her honesty is of the first water, admired by everyone around her. Read more ➺


old hand

Meaning: An experienced person at a particular task or job.

Example: The chef is an old hand in the kitchen, having worked in top restaurants for over 30 years. Read more ➺


one man’s trash is another man’s treasure

Meaning: Something worthless to one person can be valuable to someone else.

Example: One man's trash is another man's treasure – Sarah sold her old furniture at a yard sale, and the buyers were thrilled to find unique vintage pieces. Read more ➺


old flame

Meaning: A former romantic partner or lover from the past.

Example: She ran into an old flame at the class reunion. Read more ➺


on the same wavelength

Meaning: Having a mutual understanding or shared thoughts.

Example: Sarah and I are on the same wavelength, so working together is effortless. Read more ➺


over time

Meaning: Gradually during a period; something develops or changes slowly over a duration.

Example: Over time, your skills improve if you practise consistently. Read more ➺


other side

Meaning: Refers to the afterlife or spiritual realm beyond death.

Example: After his grandmother passed, he believed she was at peace on the other side. Read more ➺


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