(intransitive) to speak; to talk (to say words out loud) / (by extension) to communicate by any means / (Brazil, transitive) to say something / (transitive with com or para) to talk to / (transitive with Brazil or para) to tell (to convey by speech) / (transitive with de or sobre) to talk about / (transitive with de) to speak ill of / (transitive) to speak (to be able to communicate in a language)

a cant, dialect or regional language

(informal) to badmouth (to criticise or malign)

(transitive) to mean it (to have conviction in what one says)

(transitive with de) to hear of (to become aware of through second-hand knowledge)

to speak in tongues (to speak in an elaborate but apparently meaningless speech)

(idiomatic) not to mention (used to introduce another important point)

(intransitive, idiomatic) to talk excessively

(idiomatic) to speak while the interlocutor is not paying attention

(idiomatic) to express oneself coherently, concisely, or in a way that makes sense