15-letter words containing o, d, s, u, n, i
- undress uniform — a uniform worn on other than formal occasions.
- universal donor — a person with blood of group O.
- unknown soldier — an unidentified soldier killed in battle and buried with honors, the tomb serving as a memorial to all the unidentified dead of a nation's armed forces. The tomb of the American Unknown Soldier, commemorating a serviceman killed in World War I, was established in the Arlington National Cemetery in Virginia in 1921. In 1958, the remains of personnel of World War II and the Korean War were buried alongside the tomb (now called the Tomb of the Unknowns, ). In 1984, a serviceman of the Vietnam War was interred next to the others.
- unmelodiousness — an unmelodious quality or character
- unpolished rice — a partly refined rice, hulled and deprived of its germ but retaining some bran.
- unskilled labor — work that requires practically no training or experience for its adequate or competent performance.
- unsophisticated — not sophisticated; simple; artless.
- us savings bond — A US Savings bond is a long-term bond issued by the US government that is considered low-risk.
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- vicissitudinous — a change or variation occurring in the course of something.
- volume discount — a reduced price for goods given by a seller on the basis that the buyer buys a large quantity
- women's studies — a program of studies concentrating on the role of women in history, learning, and culture.