17-letter words containing s, e, l, f, u
- sulphur butterfly — sulfur butterfly.
- take upon oneself — to take the responsibility for; accept as a charge
- the life and soul — a person regarded as the main source of merriment and liveliness
- the sound of mull — the water that separates the island of Mull from the mainland of Scotland
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- thistle butterfly — any nymphalid butterfly of the genus Vanessa, as the red admiral or painted lady.
- to feel your oats — to feel exuberant or high-spirited
- troilus butterfly — spicebush swallowtail.
- unclassified road — a road that has not been given a grade because it is of a basic standard
- uncomfortableness — causing discomfort or distress; painful; irritating.
- unlawful assembly — a meeting of three or more people with the intent of carrying out any unlawful purpose
- unofficial strike — a strike that is not approved by the strikers' trade union
- unprofessionalism — not professional; not pertaining to or characteristic of a profession.
- unselfconsciously — in an unselfconscious manner
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California