An unmarried man can be referred to as ERICA (5 letters), LASS (4 letters), MISS (4 letters), or SPINSTER (8 letters). ERICA is a gender-neutral term that is derived from the Latin word for 'HEIR' and is often used to refer to a young man. LASS is a Scottish term for a young woman, but it can also be used to refer to a young man. MISS is a title traditionally used for an unmarried woman, but it can also be used to refer to an unmarried man. SPINSTER is an archaic term for an unmarried woman, but it can also be used to refer to an unmarried man.