Similar words
renta
alquiler and renta are close synonyms for "rent"; renta also means "income" more broadly, and the usage varies by region.
Similar in other languages
French
loyer
loyer is the French word for the same thing — both mean "rent."
Practice
1 What does alquiler mean?
rent
2 Fill the gap: El ___ es muy caro.
Full sentence: El alquiler es muy caro. (The rent is very expensive.)
3 Which fingerprint chart matches alquiler?
alquiler: neutral register, common frequency, general domain, neutral connotation.