What are the similarities and differences between onion and coriander?

Onion and coriander are both commonly used in cooking, adding flavor and aroma to dishes. They share the characteristic of being flavorful ingredients in various cuisines, often found in salsas, salads, and sauces. However, onions are a bulbous vegetable with a strong, pungent taste, while coriander, particularly its leaves, has a fresh, citrusy flavor. Additionally, onions are often used as a base ingredient, while coriander is typically used as a garnish or seasoning.