Filled in is a term that can be used to describe a variety of activities. BRIEFED, which has seven letters, is when someone is given information about a particular topic or task. SUBBED, also with six letters, is when someone takes over the duties of another person for a short period of time. Temped, also with six letters, is when someone is hired on a temporary basis to complete a specific task. CLUED, with five letters, is when someone is given hints or clues to help them understand something. Finally, UPDATED, with seven letters, is when someone adds new information to an existing document or system.