cause, v. occasion, induce, [effect], originate.
caustic, a. [burning], [virulent], [acrid], catheretic, mordacious, [cutting], [satirical].
caution, n. wariness, [forethought], circumspection; [advice], [warning], admonition.
caution, v. forewarn, admonish, [warn], [counsel], [advise], [dissuade].
cautious, a. circumspect, [prudent], [wary]. Antonyms: [incautious], unwary.
cave, n. cavern, grotto, grot, [den], [catacomb], [crypt]. Associated words: speleology, spelean, stalactite, stalagmite, cavernicolous, troglodytic, caverned, cavernous.
cave-dweller, n. troglodyte.
cavil, v. [carp], criticize.--n. [objection], criticism (specious or frivolous).
caviling, a. [carping], [captious], cavilous, hypercritical.
Cayenne pepper. capsicum.