18-letter words containing i, o, n, s, d
- ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
- under the aegis of — guided or protected by
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- under-registration — the act of registering.
- united nations day — the anniversary of the United Nations on October 24, marking its founding in 1945.
- urban homesteading — homesteading (def 2).
- video entry system — a security system whereby a person in a building can see someone who wants to gain access by means of a video image
- video installation — an art installation incorporating video footage
- video surveillance — a system of monitoring activity in an area or building using a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit
- wardrobe assistant — a person who assists the wardrobe mistress in a theatre
- watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
- wesleyan methodist — a member of any of the churches founded on the evangelical principles of John Wesley.
- wild passionflower — the maypop, Passiflora incarnata.
- woe betide someone — misfortune will befall someone
- wood-burning stove — cooker: fueled by wood
- world championship — an international competition in a particular sport or activity for people all around the world
- wrongful dismissal — the act of making someone redundant for reasons which are illegal or unjust