15-letter words containing f, e, s, t, o
- transfer window — the period during the year in which a football club can transfer players from other teams into their own
- treaty of paris — a treaty of 1763 signed by Britain, France, and Spain that ended their involvement in the Seven Years' War
- tree of sadness — night jasmine (def 1).
- trout fisherman — a fisherman who catches trout
- tufted titmouse — a gray titmouse, Parus bicolor, of the eastern and midwestern U.S., having a crested head.
- velcro fastener — a fastener made of Velcro
- visser 't hooft — Willem Adolf [vil-uh m ah-dawlf] /ˈvɪl əm ˈɑ dɔlf/ (Show IPA), 1900–85, Dutch Protestant clergyman and writer: leader in ecumenical movement.
- waterford glass — fine cut or gilded glass made in Waterford, Ireland, having a slight blue cast due to the presence of cobalt.
- 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).
- wolf-rayet star — a very hot (35,000–100,000 K) and luminous star in the early stages of evolution, with broad emission lines in its spectrum.
- wrongful arrest — the act of arresting someone without proper reason
- yeast infection — candida: genital inflammation
- yellow goatfish — a schooling goatfish, Mulloidichthys martinicus, inhabiting the Atlantic Ocean from Florida to Panama.