1. to make partial or minor changes to something
We need to modify the design to meet the new requirements.
Precisamos modificar o design para atender aos novos requisitos.
2. to adjust or adapt something for a different purpose
The car was modified to improve its performance.
O carro foi modificado para melhorar seu desempenho.
3. in grammar, to limit or qualify the meaning of another word
The adjective modifies the noun in this sentence.
O adjetivo modifica o substantivo nesta frase.