A thing that blocks one's way or prevents progress.

A deep, clear, and sometimes sudden understanding of a complex situation or problem.

A system in which the people who work for a company receive a direct share of the profits made by that company, usually as a bonus or an addition to their regular salary.

Natural abilities or skills that make it easy for someone to do certain types of work or activities.

To have knowledge or perception of a situation, fact, or feeling.

As a noun, it is a task or situation that tests someone's abilities because it is difficult or demanding.