Então
Então is a common word in Portuguese that functions as an adverb and a subordinating conjunction. It has several related senses, most notably indicating a sequence in time (“then”) and signaling consequence or result (“therefore”, “so”). It also serves as a discourse marker to manage the flow of conversation.
In temporal use, então introduces the action that follows a previous event or statement: “Primeiro, ele chegou;
In causal or inferential use, então marks a conclusion drawn from what precedes: “Não estudou, então não
As a discourse marker, então often appears at the beginning or middle of a clause to invite
Etymology: então comes from a combination of the preposition em (“in” or “at”) and tão (“so, such”),
See also: Portuguese conjunctions and adverbs of sequence and consequence.