The term 'put inside' can be expressed in two crossword solutions: 'ENCLOSE' (7 letters) and 'INSERT' (6 letters). ENCLOSE means to surround or encircle something, while INSERT means to place something within a larger object. Both terms refer to the act of putting something inside another object. This could be done for a variety of reasons, such as to protect an item, to store it, or to add something to a larger object.