1 make sth useless/unsuccessful/not very good
ADV. completely, quite Her selfish behaviour completely spoiled the evening. | rather, slightly, somewhat
VERB + SPOIL mustn't, not be going to, not want to I don't want to spoil things for everyone else. | be a pity to It would be a pity to spoil the surprise. | try to | not let sth Don't let the bad weather spoil your holiday.
2 a child
PREP. with spoiling the children with expensive toys
PHRASES be completely/thoroughly/utterly spoilt Those children are thoroughly spoilt! | spoil sb rotten My grandparents used to spoil me rotten. | a spoilt brat/child