Some of the words which we would presume would be easily and commonly understood can cause havoc in otherwise solid marriages. And for the record, I'd like it understood that this is not a confession, or a description of the travails of any one living or dead, or whatever it is they say on Law and Order so that no one gets sued.
For example, take the word "basic"---a descriptor used to define the essential in a given product, like, say, life. In a marriage, it can be horribly misunderstood. Like the husband thinks "basics" means things like food, water, transportation and the wife thinks it means books, chocolate and wine. That, in a purely hypothetical situation, could cause problems.
Or, how about the word "frivolities", which to one unnamed party means wasteful things, and to another means pleasant treats. Are you following here?
These issues need not break a marriage---they can be talked through, but one of the parties may need some self-identified basics to manage the negotiations.