This is the 5024th most frequent Portuguese word.
leves
"Leves" means "light" (not heavy) or "mild" in English.
Here, 'leves' is used as an adjective to describe the backpacks, indicating their weight or ease of transportation.
As mochilas são leves e fáceis de carregar.
The backpacks are light and easy to carry.
In this sentence, 'leves' again serves as an adjective to signify the mild intensity of the wind movements.
As correntes de vento nesta casa são muito leves.
The airflow in this house is very light.
Here, 'leves' is used to describe the meals, implying that they are not heavy or rich and are easy to digest.