significant

significant other

A person with whom one is in a serious romantic relationship. Primarily heard in US. Since Kelly didn't have a significant other, she attended her friend's wedding alone.

a significant other

(mainly American)

a person that someone is married to or who they have a serious sexual or romantic relationship with (not used with the ) The ad read, 'Take your significant other to the Café Carlyle for a romantic night out.'

Common Names:

Name	Pronounced	Usage
Abeni	-	Western African, Yoruba
NuallÁN	-	Ancient Irish
Amos	AY-məs (English)	English, Hebrew, Biblical, Biblical Latin, Biblical Greek, Biblical Hebrew
Nike	-	Greek Mythology, Ancient Greek
Taichi	tah-ee-chee	Japanese
MatthÄUs	-	German