Oxymoron

Oxymoron is a figure of speech.

According to the Oxford Learner's Dicionaries it is "a phrase that combines two words that seem to be the opposite of each other"

Grammarly gives the definition that oxymoron is "a figure of speech that combines contradictory words with opposing meanings"

Oxymorons may seem illogical at first, but in context they usually make sense.

Examples:

"old news", "deafing silence", "organized chaos", "seriously funny", "original copy", "plastic glasses", "clearly confused", and so on. 

Sources: 

"What Is an Oxymoron? Definition and Examples." Grammarly, 2 June 2022,                            www.grammarly.com/blog/oxymoron/.

"Oxymoron." Oxymoron Noun - Definition, Pictures, Pronunciation and Usage Notes /             Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.Com,                        www.oxfordlearnersdictionaries.com/definition/english/oxymoron. Accessed             21 Sept. 2023.

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