Parrock is a word that is quite uncommon in everyday conversation, and as such, can be hard to come up with synonyms for. One possible option is the word "pasture," which refers to an area of land where livestock graze. Another option might be "field," which is a more general term for a piece of land that is used for agriculture or other purposes. Alternatively, you could use "meadow," which typically refers to a grassy area that is often used for outdoor recreation. Ultimately, the choice of synonym will depend on the context in which the word is being used, as well as personal preference.