The term 'keep out of sight' can be expressed in a variety of ways. The four crossword solutions for this phrase are HIDE (4 letters), HOLEUP (6 letters), LAYLOW (6 letters), LIELOW (6 letters), and CONCEAL (7 letters). HIDE means to put something out of sight, while HOLEUP implies to stay in a secure place. LAYLOW and LIELOW both suggest to remain inconspicuous or to avoid attention. Finally, CONCEAL means to HIDE something from view. All of these words imply the same idea of keeping something out of sight.