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
While fans are mourning the loss of the player's talents out on the field, Fred's wife Sydney has more to share about how the role of being the significant other of a football player changes when your partner is out with an injury.
—
Tabitha Parent, PEOPLE, 19 Dec. 2025
The mother and her significant other both work in the sheriff’s department, the agency confirmed in an email.
—Eduardo Cuevas, USA Today, 13 Dec. 2025
Is your significant other bringing you home to meet the in-laws for the holidays?
—Air Mail, 13 Dec. 2025
The Los Angeles County Sheriff's Department said the victim and her significant other were both LASD employees.
—Jennifer Bisram, CBS News, 12 Dec. 2025
See All Example Sentences for significant other
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Tabitha Parent, PEOPLE, 19 Dec. 2025
The mother and her significant other both work in the sheriff’s department, the agency confirmed in an email.
—Eduardo Cuevas, USA Today, 13 Dec. 2025
Is your significant other bringing you home to meet the in-laws for the holidays?
—Air Mail, 13 Dec. 2025
The Los Angeles County Sheriff's Department said the victim and her significant other were both LASD employees.
—Jennifer Bisram, CBS News, 12 Dec. 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 27 Dec. 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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