Choose the correct synonym of the following word: OSTRACISE

The correct answer is Option (2) → Outcast

• Ostracise means to shut someone out of a group or society; to refuse to accept someone. It comes from the Greek ostrakon, a piece of broken pottery on which the citizens of ancient Athens wrote the name of a person to be sent out of the city.
  Example: The villagers ostracised the family after the quarrel.
• Outcast means a person who has been driven out of a group or society. It names the person who is ostracised, so outcast is the synonym among the options.
  Example: After the scandal he lived like an outcast.

Why the Other Options are Incorrect?

Option 1: Subsume — Incorrect. Subsume means to include something within a larger group; it is close to the opposite of shutting someone out.
Example: The two small banks were subsumed into a larger one.

Option 3: Output — Incorrect. Output means the amount of something produced; it has no link with shutting people out.
Example: The factory doubled its output this year.

Option 4: Outsmart — Incorrect. Outsmart means to defeat someone by being cleverer; it is not about rejecting someone from a group.
Example: The fox outsmarted the hunters.