Explanation:
A Opinion is a view or judgment formed about something, not necessarily based on fact or knowledge, I don't know if your trying to spell opinion or onion, but either way:
The onion, also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. Its close relatives include the garlic, scallion, shallot, leek, chive, and Chinese onion
