The term 'fair share, usually' can be summarized as an equitable division of resources or responsibilities. This phrase is often used to describe a situation in which each person involved receives an equal portion of something. The crossword solution for this term is 'HALF, ' which is a four-letter word that indicates the idea of dividing something into two equal parts. This concept of fairness is often seen in many aspects of life, from sharing chores at home to distributing resources among nations.