The representative vocabulary for Cancer is "emotional."

Cancer, which is ruled by the Moon, is known for its extreme emotional sensitivity and intuition. This water sign is deeply empathetic and nurturing, often taking care of others before taking care of themselves. They are highly intuitive and can pick up on the moods and feelings of others, which can sometimes make them feel overwhelmed.

Due to their emotional nature, Cancer can be prone to mood swings and can become easily hurt or offended. However, this also makes them very loyal and affectionate towards those they care about. Cancer is also known for their love of home and family, often finding comfort and security in their personal space.

In relationships, Cancer values trust and emotional intimacy above all else. They need to feel a deep emotional connection with their partner in order to feel fulfilled. They can be quite possessive and jealous at times, but this is due to their strong attachment to their loved ones.

Overall, the representative vocabulary of "emotional" truly encapsulates the essence of Cancer. Their emotional nature is both their strength and their weakness, but it is what makes them unique and special.