Similar words
kilogramo
Kilo is simply the everyday short form of kilogramo — the same unit, informal vs. formal register.
Similar in other languages
German
Kilo
Kilo is the German word for the same thing — both mean "kilo."
Portuguese
quilo
quilo is the Portuguese word for the same thing — both mean "kilo."
Practice
1 What does kilo mean?
kilo
2 Fill the gap: Compré un ___ de manzanas.
Full sentence: Compré un kilo de manzanas. (I bought a kilo of apples.)
3 Which fingerprint chart matches kilo?
kilo: neutral register, core frequency, general domain, neutral connotation.