mas

conjunction

1. but (introduces a clause that contradicts the implications of the previous clause)

   “O livro é curto, mas bom.”

2. but (introduces the correct information for something that was denied in the previous clause)

   “Fomos recebidos não com aplausos, mas pedradas.”

adverb

1. emphasises a previous clause, adverb or adjective; really; and how

   “Este livro é bom, mas bom mesmo.”

noun

1. but (an instance of proclaiming an exception)

   “Quero que você termine isso, sem mas nem porquês.”

contraction

1. contraction of me +‎ as: feminine plural of mo