someday
Americanadverb
adverb
Spelling
The adverb someday is written solid: Perhaps someday we will know the truth. The two-word form some day means “a specific but unnamed day”: We will reschedule the meeting for some day when everyone can attend.
Etymology
Origin of someday
before 900; Middle English sum day, Old English sum dæg; see some, day
Explanation
The adverb someday means eventually or at some point in the future. So if you plan to visit Sri Lanka someday, you'd like to do it but you don't know exactly when it will happen. Use the word someday when you can't be specific about when something will occur. If you're not sure when you'll next see your friend who's moving to Alaska, you can say, "I'll visit you someday soon!" And if you keep planning to make homemade bread but never get around to it, you might promise yourself you'll do it someday.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
On Thursday, his administration unveiled plans to transform one of the capital’s unassuming municipal golf courses into a luxe, 18-hole expanse that could someday host major tournaments.
From Slate • May 18, 2026
Because the material dissolves in water, researchers say it may someday circulate through rooftop solar collectors during the day before being stored in tanks that release heat at night.
From Science Daily • May 15, 2026
Forget about a private office to reduce distractions, unless you reach the C-suite someday.
From The Wall Street Journal • May 14, 2026
The survey finding that 35% of preretirees expect to need care someday, while nearly half have done nothing about it, reflects more than simple procrastination.
From MarketWatch • May 14, 2026
Perhaps someday Tía Mazal will get her wish, and I will be a bride and then a mother.
From "Across So Many Seas" by Ruth Behar
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.