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 the group of actors is officially joining the Marvel universe, several of them have been supported by significant others throughout the journey.
—
Caroline Blair, People.com, 24 July 2025
Fans' significant others are watching from the other room, stunned and bewildered by the dynamics of a girl who loves two siblings.
—Nicole Fallert, USA Today, 23 July 2025
The provider shares medical information, both individuals discuss the care options, often bringing in significant others and ultimately a mutual decision is made that supports the patient’s preferences and the provider’s best clinical judgment.
—Dr. Howard A. Selinger, Hartford Courant, 20 July 2025
This is a binge best enjoyed solo or with a significant other.
—Dana Feldman, Forbes.com, 20 July 2025
See All Example Sentences for significant other
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Caroline Blair, People.com, 24 July 2025
Fans' significant others are watching from the other room, stunned and bewildered by the dynamics of a girl who loves two siblings.
—Nicole Fallert, USA Today, 23 July 2025
The provider shares medical information, both individuals discuss the care options, often bringing in significant others and ultimately a mutual decision is made that supports the patient’s preferences and the provider’s best clinical judgment.
—Dr. Howard A. Selinger, Hartford Courant, 20 July 2025
This is a binge best enjoyed solo or with a significant other.
—Dana Feldman, Forbes.com, 20 July 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 7 Aug. 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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