The term 'turn in' can be interpreted in many ways, but in this context it is referring to the act of ending a task or job. The crossword solutions for this term include 'REDEEM' (6 letters), 'SCREW' (5 letters), 'ratout' (6 letters), 'RETIRE' (6 letters), 'SUBMIT' (6 letters), 'hitthehay' (9 letters), 'callitaday' (10 letters), and 'hitthesack' (10 letters). All of these words refer to the idea of completing a task or job and moving on to something else. REDEEM implies exchanging something of value, while SCREW and ratout refer to the idea of betrayal or deceit. RETIRE and SUBMIT both imply the idea of ending a job or task, while hitthehay, callitaday, and hitthesack are all slang terms for ending a job or task for the day.