18-letter words containing a, s, h, e
- white-spotted hyla — a type of tree frog (H. leucophyllata) of tropical America
- whittaker chambers — Robert, 1802–71, Scottish publisher and editor.
- wilson's phalarope — a phalarope, Phalaropus tricolor, that breeds in the prairie regions of North America and winters in Argentina and Chile.
- without hesitation — immediately, willingly
- woman of the house — lady of the house.
- wpa pre-shared key — Wi-Fi Protected Access Pre-Shared Key