This is the 963rd most frequent Portuguese word.
contudo
However.
Used as a conjunction meaning 'however'.
Queria ter aceitado o convite; contudo, já tinha outros planos.
I wanted to accept the invitation; however, I already had other plans.
Used as a transition word meaning 'yet'.
Ele é esforçado, contudo precisa de mais prática para melhorar.
He is hardworking, yet he needs more practice to improve.
Used as a preposition meaning 'despite' in this construction.