A mountain range in Eastern Europe between the Black Sea and the Caspian Sea, on territory of Russia, Georgia, Armenia and Azerbaijan, which includes the ranges of Greater Caucasus and Lesser Caucasus.

The act of causing. / The act or agency by which an effect is produced. / Cause and effect, considered as a system.

Prudence when faced with, or when expecting to face, danger; care taken in order to avoid risk or harm.

(transitive) To warn; to alert, advise that caution is warranted. / (soccer) To give a yellow card

(optics) A curve to which the ray of light, reflected or refracted by another curve, are tangents, the reflecting or refracting curve and the luminous point being in one plane.

(optics) A surface to which rays reflected or refracted by another surface are tangents.

Capable of burning, corroding or destroying organic tissue. / (of language, etc.) Sharp, bitter, cutting, biting, and sarcastic in a scathing way.

Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

(cricket) Out by being caught by the bowler.

(cricket) Describing the way of being out by being caught by the wicketkeeper.