Meaning ofspoilin English

Verb

1. to damage or ruin something's quality
   The rotten fruit will spoil the entire batch.
2. to overindulge or pamper excessively
   She spoils her children with expensive gifts and lavish parties.
3. to decay or become rotten (food)
   The milk will spoil if it's not refrigerated properly.
4. to reveal plot details prematurely; ruining a surprise
   The reviewer accidentally spoils the movie's ending in the article.
5. to invalidate a ballot by defacing it; intentionally
   The voter intentionally spoils her ballot by writing outside the box.
6. to reduce airplane lift by deflecting air upwards
   The wing design spoils the airflow to reduce lift during landing.