Similar words
caminhão
caminhão is the general word for "lorry" or truck; carreta specifically means a large trailer truck, an articulated lorry.
Similar in other languages
German
Lastwagen
Lastwagen is the German word for the same thing — both mean "lorry."
Practice
1 What does carreta mean?
lorry
2 Fill the gap: A ___ bloqueou a estrada.
Full sentence: A carreta bloqueou a estrada. (The lorry blocked the road.)
3 Which fingerprint chart matches carreta?
carreta: neutral register, common frequency, general domain, neutral connotation.