Similar words
rato
camundongo specifically means the smaller mouse species; rato is more general, can mean rat or mouse colloquially, typically a larger rodent.
Similar in other languages
Spanish
ratón
ratón is the Spanish word for the same thing — both mean "mouse."
French
souris
souris is the French word for the same thing — both mean "mouse."
Practice
1 What does camundongo mean?
mouse
2 Fill the gap: Um ___ entrou.
Full sentence: Um camundongo entrou. (A mouse came in.)
3 Which fingerprint chart matches camundongo?
camundongo: neutral register, common frequency, general domain, neutral connotation.