1. a casual, informal discussion about unimportant or entertaining topics, without serious or deep subject matter
We had a light conversation about the weather and weekend plans.
Tivemos uma conversa leve sobre o clima e planos do fim de semana.
2. a friendly exchange of words intended to be pleasant and not controversial
At the party, I engaged in light conversation with several new people.
Na festa, tive uma conversa leve com várias pessoas novas.