Spouse is a commonly used term to refer to a significant other in a committed relationship, particularly in marriage. However, there are many other words that can be used to describe one's partner or better half. Some common synonyms for spouse include partner, companion, mate, better half, significant other, soulmate, beloved, and sweetheart. Each of these words implies a level of love, closeness, and commitment. Using different terms to describe one's partner can also add depth and nuance to a relationship. No matter what one chooses to call their partner, what matters most is the affection, respect, and loyalty that they share.