The term 'Spring Sign' refers to the four zodiac signs that are associated with the season of spring: ARIES (5 letters), TAURUS (6 letters), Gemini (5 letters), and Cancer (6 letters). ARIES is represented by the symbol of a ram, TAURUS by a bull, Gemini by a pair of twins, and Cancer by a crab. ROBIN (5 letters) is a common name for a bird, and BUD (3 letters) is a term used to refer to a flower in its early stages of growth. Therefore, the crossword solutions for the term 'Spring Sign' represent the symbols associated with the four zodiac signs of spring, as well as two other symbols that are related to the season.