significant(redirected from significantly)
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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.
your significant other
A person's significant other is their wife, husband, or the person they are having a relationship with. Poor Holly, she hadn't any significant other to bring with her. Well, we always work together, we live together — he's my significant other.