Words containing the letter “k” are relatively uncommon in Spanish, appearing primarily in loanwords, often from other languages like English, German, Greek, and Basque, and in proper nouns of diverse origins. Examples include “kilo” (kilogram), “kayak,” and “karaoke.” A small number of words with “k” have been assimilated into the Spanish language over time, sometimes undergoing spelling adaptations.
The scarcity of this letter highlights the historical evolution of the Spanish language and its orthographic conventions. While “c” before “a,” “o,” and “u” represents the /k/ sound, “k” itself played a minimal role until more recent borrowings necessitated its adoption. Understanding this linguistic feature provides valuable insight into the language’s development and its interaction with other cultures. This relative rarity can also be a useful tool for learners in identifying loanwords.