15-letter words containing n, o, f, i, s
- unforgivingness — not disposed to forgive or show mercy; unrelenting.
- unfossiliferous — (of sediment, clay, rock, etc) not containing fossils
- unselfconscious — not self-conscious; without affectation or pretense: an unselfconscious manner.
- usman dan fodio — 1754–1817, African mystic and revolutionary leader, who created a Muslim state in Nigeria
- widow's benefit — (in the British National Insurance scheme) a former weekly payment made to a widow
- witch of agnesi — a plane curve symmetrical about the y- axis and asymptotic to the x- axis, given by the equation x 2 y =4 a 2 (2 a − y).
- writ of summons — a writ requiring one to appear in court to answer a complaint.
- yeast infection — candida: genital inflammation