Translation guide
In Japanese, the most common way to refer to a married couple is 夫婦 (fuufu). However, the appropriate term depends on context, formality, and whose couple you're talking about.
Referring to a married couple in a neutral or general sense.
The standard, neutral word for a married couple. Can be used for any couple, including yourself and your spouse.
That married couple gets along very well.
We are a married couple.
A polite term used to refer to someone else's married couple, often with respect. Not used for oneself.
We invited Mr. and Mrs. Tanaka.
Humbly referring to your own married couple when speaking to someone outside your group.
While 夫婦 is neutral, it can be used for your own couple. In very formal situations, you might add 私ども (watakushidomo) for extra humility.
My wife/husband and I are moving next month.
Specifically referring to a couple who recently got married.
Referring to a couple that has been married for a long time, often with a nuance of familiarity or endearment.
When you want to say 'couple' in a romantic sense, but marriage isn't the focus.
Loanword from English 'couple'. Used for dating couples, not necessarily married. Avoid using this if you specifically mean a married couple.
Not specifically 'married couple'; use 夫婦 for clarity.
I heard that couple is getting married.
夫婦 (fuufu) is the general term and can be used for any married couple, including your own. 夫妻 (fusai) is a respectful term used only for other people's couples, similar to 'Mr. and Mrs.' in English. Never use 夫妻 for yourself.
The English word 'couple' can refer to both dating and married couples. In Japanese, カップル typically means a dating couple. If you want to clearly say 'married couple', use 夫婦.