1. First person singular past tense of 'bloquear' - to obstruct, prevent passage, or restrict access
I blocked the entrance to prevent anyone from entering.
Bloqueei a entrada para evitar que alguém entrasse.
2. To prevent someone from contacting you on social media or messaging platforms
I blocked that user because they were harassing me.
Bloqueei esse usuário porque estava me assediando.
3. To freeze or lock an account, card, or access
I blocked my credit card after losing it.
Bloqueei meu cartão de crédito depois de perdê-lo.