significant other
noun
: a person who is important to one's well-being
especially
: a spouse or one in a similar relationship
Examples of significant other in a Sentence
Before you make such an important decision, you should talk it over with your significant other.
she has threatened to divorce her significant other if he doesn't stop gambling
Recent Examples on the Web
As in years past, there was plenty of heated debate, some clever campaigning on social media, a last-minute push for votes from A-list significant others and a few races that were neck-and-neck right up until the last ballot was cast.
—
Alex Apatoff, PEOPLE, 24 Oct. 2025
Allison Williams and Dave Franco are thrown together after their significant others die in a car crash.
—Brian Truitt, USA Today, 22 Oct. 2025
Hernandez said his wife heard some stories about alleged issues while staying at the Pfister from other Dodgers’ significant others.
—Scott Thompson, FOXNews.com, 15 Oct. 2025
Another letter, filed by Williams’ significant other, says Williams has spent past years taking care of family members in need.
—Nate Gartrell, Mercury News, 15 Oct. 2025
See All Example Sentences for significant other
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Alex Apatoff, PEOPLE, 24 Oct. 2025
Allison Williams and Dave Franco are thrown together after their significant others die in a car crash.
—Brian Truitt, USA Today, 22 Oct. 2025
Hernandez said his wife heard some stories about alleged issues while staying at the Pfister from other Dodgers’ significant others.
—Scott Thompson, FOXNews.com, 15 Oct. 2025
Another letter, filed by Williams’ significant other, says Williams has spent past years taking care of family members in need.
—Nate Gartrell, Mercury News, 15 Oct. 2025
See All Example Sentences for significant other
Cite this Entry
“Significant other.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/significant%20other. Accessed 30 Oct. 2025.
Copy CitationMedical Definition
significant other
noun
significant oth·er
-ˈət͟h-ər 
: a person who is important to one's well-being
especially
: a spouse or one in a similar relationship
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