Intrapreneurship is acting like an entrepreneur within a larger organization. Intraprenuers are usually highly self-motivated, proactive and action-oriented people who are comfortable with taking the initiative, even within the boundaries of an organization, in pursuit of an innovative product or service.
The call to the bar is a legal term of art in most common law jurisdictions where persons must be qualified to be allowed to argue in court on behalf of another party, and are then said to have been called to the bar or to have received a call to the bar.
Bar, barrier, barricade mean something put in the way of advance. Bar has the general meaning of hindrance or obstruction: a bar across the doorway. Barrier suggests an impediment to progress or a defensive obstruction (natural or artificial): a trade barrier; a mountain barrier; a road barrier. A barricade is especially a pile of articles hastily gathered or a rude earthwork for protection in street fighting: a barricade of wooden boxes.