15-letter words containing s, p, o, i, l, b
- snubfin dolphin — Australian dolphin with a small dorsal fin
- spermatoblastic — relating to a spermatoblast
- spin the bottle — a game in which someone spins a bottle and receives a kiss from the person at whom the bottle points on coming to rest.
- spiny cocklebur — a cocklebur, Xanthium spinosum, introduced into North America from Europe.
- spiral notebook — a notebook held together by a coil of wire passed through small holes punched at the back edge of the covers and individual pages
- strephosymbolia — a condition of perceiving objects as their mirror image and, specifically, having difficulty in distinguishing letters in words
- streptobacillus — any of various bacilli that form in chains.
- subperiosteally — the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.
- subprofessional — being below professional standards: subprofessional health care.
- subreptitiously — in a subreptitious manner
- uncompromisable — that cannot or should not be compromised
- viper's bugloss — the blueweed.
- visible exports — goods sold to a foreign country or countries
- visible imports — products that a company or country buys from other countries
- washing-up bowl — plastic bowl used for washing dishes