Valentine's Day is a holiday celebrated on February 14th, and is often associated with gifts of love. A popular gift for this day is a ROSE, which can be represented in a crossword puzzle by the 4-letter word 'ROSE'. Additionally, multiple roses can be given as a gift, which can be represented by the 5-letter word 'ROSES'. Another popular Valentine's Day gift is PERFUME, which can be represented by the 7-letter word 'PERFUME'.