No true Spanish words use the letter K. The K sound would be spelled with a C (before A, O, U, or a consonant) or with QU (before I or E).
A word with a K might show up in Spanish writing but it would be, from the Spanish viewpoint, a foreign word. It would be like using "cañón" in English writing a using the N with a tilde and the O with a written accent.
Rhinoceros is a strong animal. It begins with the letter r.
None. But in Spanish, a word that starts with a single "r" is pronounced as if it were a double "r".
what all guitar brands start with the letter r
a 5 letter long animal that starts with a n r ........... ryhno
Rat
The letter r.
Roar?
leopard
rat
Powerful things that start with the letter r:radiationrainstormrecommendationredemptionrefereeregulationsrejectionreligionremarkrespectresponsibilityrestresultsrevengerevoltrevolverrhetoricrhinocerosrifleriotriverrocketRottweilerrumor
Many Greek words start with 'r' just as they do in English, Spanish, and other languages.
renard which is a fox