The term 'SLIP INTO' can be broken down into six crossword solutions: DON (3 letters), WEAR (4 letters), PUTON (5 letters), EASE (4 letters), FOIST (5 letters), and THROWON (7 letters). The phrase 'slip into' generally means to put on clothing or an item of clothing quickly and easily. The first solution, DON, is a verb meaning to put on clothing. The second solution, WEAR, is also a verb meaning to have clothing on one's body. The third solution, PUTON, is a phrasal verb meaning to put on clothing. The fourth solution, EASE, is a verb meaning to move or put something in a place without difficulty. The fifth solution, FOIST, is a verb meaning to force someone or something into a place or situation. The sixth solution, THROWON, is a phrasal verb meaning to put on clothing quickly and carelessly.