boss

Your boss is the person who tells you what to do at work.

Example: My former boss was very happy for the chance to fire me.

A boss is a leader in an organisation.

Example: The Mayor was an old-style political boss who made his own decisions.

If you boss somebody around/about, you tell them what to do, especially when you don't have any special power to do so.

Example: This was just another occasion when Indians were bossed around by white people.

If something is boss, it is very good.