21-letter words containing c, r, a, g, f
- tide-generating force — the difference between the force of gravity exerted by the moon or the sun on a particle of water in the ocean and that exerted on an equal mass of matter at the centre of the earth. The lunar tide-generating forces are about 2.2 times greater than are the solar ones
- topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
- virginia (rail) fence — a zigzag fence made of rails laid across one another at the ends