What is the definition of Solely Weapon?

The word 'olely weapon' is like a superhero who's just wearing a utility belt of violence. It means something that can only be used as a tool for harm or destruction, like a pair of scissors or a pair of scaring wands. But let's make this a bit darker with an example sentence: "The sole weapon of the new CEO was his ability to turn the company's lunchroom into a battlefield of office chairs and sabotage." There, we're talking about someone who uses their managerial position not just to lead, but as a lethal assassin in the boardroom.