The term DECORATE WITH STRINGS OF FLOWERS can be summarized by two crossword solutions: LEIS (4 letters) and GILD (4 letters). Leis are traditional Hawaiian garlands made of flowers, leaves, shells, and other natural materials. Gilding is the process of covering an object with a thin layer of gold or other precious metal. Therefore, DECORATE WITH STRINGS OF FLOWERS can be interpreted as adorning something with leis or gilding it.