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Synonyms

someday

American  
[suhm-dey] / ˈsʌmˌdeɪ /

adverb

  1. at an indefinite future time.


someday British  
/ ˈsʌmˌdeɪ /

adverb

  1. at some unspecified time in the (distant) future

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

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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.

Simon French, chief economist at consultancy Panmure Liberum, says Streeting is a "relatively market-friendly option" because of his pro-growth comments, but also a political risk because he might someday want to be prime minister.

From BBC • Jun. 23, 2026

No national team from outside Europe or South America has ever hoisted the World Cup, and while that will certainly change someday, it won’t be this year.

From Salon • Jun. 11, 2026

In the end, I take great comfort in knowing someday, somehow you will find what you are looking for.

From Los Angeles Times • Jun. 6, 2026

More than 75% of young renters still think they someday will own a home, according to a survey by John Burns Research & Consulting.

From The Wall Street Journal • Jun. 2, 2026

Perhaps someday he was once again able to enjoy a piece of toast without weeping.

From "The Long-Lost Home" by Maryrose Wood

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