Capitulum is a Latin word that has various synonyms in the English language. Some of the synonyms for capitulum are summit, peak, apex, head, top, and crown. Capitulum is commonly used in the context of biology where it refers to the head of a flower or the top of a bone. Summit and peak are often used to describe the highest point of a mountain or a hill. Apex is used to describe the highest point of an object, while head is used to describe the top of a living organism. Top and crown are used to describe the highest point of an object or structure, such as a building.