18-letter words containing b, i, p, o
- rabbit-proof fence — a fence through which rabbits are unable to pass
- ribbon development — housing or commercial buildings built along a stretch of road.
- safety-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
- september holidays — a period of time in September when people do not have to go to school, college or work
- solubility product — the maximum number of undissociated ions, of an electrolyte in a saturated solution, capable at a given temperature of remaining in equilibrium with the undissolved phase of the solution.
- spin stabilization — a technique by which a bullet, rocket, etc, is made to spin around its longitudinal axis to assist it in maintaining a steady flight path
- subatomic particle — physics:
- subsidiary company — a company whose controlling interest is owned by another company.
- supraorbital ridge — browridge.
- the bottomless pit — the underworld; hell
- tip of the iceberg — a large floating mass of ice, detached from a glacier and carried out to sea.
- to be tickled pink — If you are tickled pink, you are extremely pleased about something.
- to spill the beans — If you spill the beans, you tell someone something that people have been trying to keep secret.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.