For all tiers except the Pinnacle Club, a relationship is defined as a spouse, significant other, or verified children under 18 who share the same physical address.
Additionally, a travel companion with whom you share a stateroom for an extended duration, typically 10 sailings or more, will be considered a relationship.
In the Pinnacle Club, a relationship specifically refers to a spouse and/or significant other who is verified to share the same physical address. In this context, "significant other" refers to someone in a committed relationship, similar to that of a spouse.