This is the 516th most frequent Portuguese word.
luta
Fight; struggle.
Here, 'luta' means a social or political struggle in a broader sense.
A luta pelo direito das mulheres continua.
The fight for women's rights continues.
In this sentence, 'luta' refers to a physical combat event, specifically a sports match.
O atleta participou de uma luta de boxe ontem.
The athlete participated in a boxing match yesterday.
Here, 'luta' is metaphorically used to describe perseverance and effort facing challenges.