ten to one

idiom

informal
: very likely
Ten to one they'll lose.

Examples of ten to one in a Sentence

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All four band members emerged dressed for a female slumber party in adulthood — lingerie, camisoles, bras — and led a countdown from ten to one, like a New Year’s Eve ball drop signifying the transition from a bustling party to invite-only afterparty. Nina Corcoran, Rolling Stone, 30 Aug. 2025 The share of seniors will more than double in most countries by midcentury, pushing support ratios (the number of workers per retiree) to ruinous levels; China’s, for example, will fall from ten to one in 2000 to under two to one by 2050. Michael Beckley, Foreign Affairs, 16 Apr. 2025 And certainly not by margins of nine or ten to one. Derek Newton, Forbes, 30 Nov. 2023 New York City’s right-to-shelter laws stipulate that the ratio of residents to showers in a facility must be no greater than ten to one. Eric Lach, The New Yorker, 13 Oct. 2023

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“Ten to one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ten%20to%20one. Accessed 10 Sep. 2025.

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