1. to damage or ruin something, making it no longer good or useful
The rain spoiled our picnic.
A chuva estragou nosso piquenique.
2. to harm the character of a child by being too indulgent
Don't spoil the children with too many gifts.
Não estrague as crianças com muitos presentes.
3. to reveal the ending or plot of a movie, book, etc.
Please don't spoil the movie for me!
Por favor, não me revele o final do filme!
4. to become unfit for consumption, especially food
The milk will spoil if left out of the refrigerator.
O leite vai estragar se deixado fora da geladeira.