pepper
Synonym discussion
Sense: noun/1
For noun sense 1, pepper is the usual table spice made from peppercorns and added in small amounts for a sharp taste. Salt is different because it gives a salty taste, not a spicy one, and it is often paired with pepper at the table. Spice is much broader: it can mean pepper, cinnamon, cumin, or many other strong flavorings. Chili is hotter and usually suggests heat from chili peppers rather than black or white pepper. In a restaurant, say Could I have some pepper for my soup? If you want stronger heat, say Add some chili to the noodles instead.
Etymology
Pepper is an old English word that came through Latin from earlier Greek and Indo-Iranian forms for a hot spice. In English it first named the spice made from peppercorns. Later, after people met New World capsicum plants, the same word was also used for those vegetables because of their sharp taste.