What do you call the number 20 in Spanish?

The number 20 in Spanish is called "veinte." This term is derived from the Latin word "viginti," which also means twenty. It is one of the basic numbers that learners of Spanish typically memorize early on because it is frequently used in counting and basic arithmetic.

The other options represent different numbers: "dieciocho" translates to eighteen, "diecinueve" is nineteen, and "quince" stands for fifteen. Knowing these distinctions helps reinforce the understanding of basic Spanish numbers and their correct spellings. Thus, "veinte" is the right answer for twenty.