Senator
The Spanish word 'senador' translates to 'senator' in English. A senator is a member of a senate, which is a governing body in many countries. They usually have significant power in the government and are involved in making legislation or laws. 'Senador' can refer to this role in any country, not just Spain or Spanish-speaking countries. The word is used in the same contexts and has the same connotations as 'senator' does in English, and can be used to discuss politics, government, and legislative acts.
The senator signed the agreement.
In this sentence, 'senador' refers to a political official who has the responsibility of making laws. The rest of the sentence implies the senator has reached an agreement about a particular matter, and he formalizes it by signing.
My uncle is an influential senator.
Here, 'senador' is used to describe the profession of the speaker's uncle. The adjective 'influyente' indicates that this senator has considerable influence or power in the political realm.
The senator is in a televised debate.
In this instance 'senador' is involved in a debate which is broadcast live on television. This is a common occurrence in democracies where politicians discuss and argue over policies and their impacts on the public.