1. To select or choose something intentionally and deliberately, with a specific goal or reason in mind
She picked that dress on purpose because it matched her shoes.
Ela escolheu esse vestido propositalmente porque combinava com seus sapatos.
2. To select something consciously rather than by chance or accident
He picked that restaurant on purpose for their anniversary dinner.
Ele escolheu aquele restaurante deliberadamente para o jantar de aniversário deles.