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
When the Chiefs players and their significant others were out celebrating the Super Bowl LVIII victory in Las Vegas, a Cowboys fan joined the party.
—
Pete Grathoff, Kansas City Star, 3 Nov. 2025
In previous years, the friends have even brought in their significant others to play matching characters.
—Lydia Patrick, MSNBC Newsweek, 30 Oct. 2025
But a new study by researchers in Taiwan suggests that sleeping apart from your significant other may decrease psychological well-being.
—Angelica Stabile, FOXNews.com, 29 Oct. 2025
Maybe a significant other, close friend or coworker mirrors back something that causes a feeling of discomfort.
—Valerie Mesa, PEOPLE, 28 Oct. 2025
See All Example Sentences for significant other
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Pete Grathoff, Kansas City Star, 3 Nov. 2025
In previous years, the friends have even brought in their significant others to play matching characters.
—Lydia Patrick, MSNBC Newsweek, 30 Oct. 2025
But a new study by researchers in Taiwan suggests that sleeping apart from your significant other may decrease psychological well-being.
—Angelica Stabile, FOXNews.com, 29 Oct. 2025
Maybe a significant other, close friend or coworker mirrors back something that causes a feeling of discomfort.
—Valerie Mesa, PEOPLE, 28 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 8 Nov. 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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