18-letter words containing h, o, e, d, w
- watchdog committee — a committee responsible for monitoring standards of behaviour
- water of hydration — the portion of a hydrate that is represented as, or can be expelled as, water: now usually regarded as being in true molecular combination with the other atoms of the compound, and not existing in the compound as water.
- wedge-heeled shoes — shoes with wedge heels
- wesleyan methodist — a member of any of the churches founded on the evangelical principles of John Wesley.
- west-northwestward — moving, bearing, facing, or situated toward the west-northwest.
- west-southwestward — moving, bearing, facing, or situated toward the west-southwest.
- white-faced hornet — any large, stinging paper wasp of the family Vespidae, as Vespa crabro (giant hornet) introduced into the U.S. from Europe, or Vespula maculata (bald-faced hornet or white-faced hornet) of North America.
- white-footed mouse — any of several North American woodland mice of the genus Peromyscus, especially P. leucopus, having white feet and undersides.
- white-fronted tern — a coastal bird of New Zealand and SE Australia, Sterna striata, with a long black bill, a white breast, and a forked tail
- white-spotted hyla — a type of tree frog (H. leucophyllata) of tropical America
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.
- woman of the world — a woman experienced and sophisticated in the ways and manners of the world, especially the world of society.