The term 'bit of work' can be broken down into five crossword solutions: ERG (3 letters), TASK (4 letters), JOB (3 letters), CHORE (5 letters), and STINT (5 letters). All of these terms refer to a type of work that needs to be done, and they are often used interchangeably. An ERG is a unit of work or energy, and it is typically used in the context of physical labor. A TASK is an assigned JOB or piece of work that needs to be completed. A JOB is a paid position that requires a certain set of skills or duties. A CHORE is a small, often mundane TASK that needs to be done. Finally, a STINT is a period of time spent doing a particular JOB or TASK.