17-letter words containing s, p, a, c, e, f
- sexual preference — Someone's sexual preference is the same as their sexual orientation.
- spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- sports facilities — places and things for doing sports
- supreme sacrifice — the sacrifice of one's own life: Many made the supreme sacrifice during the war.
- the south pacific — the part of the Pacific Ocean to the south of the equator
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California