The phrase "sounds good" is commonly used in English to express agreement, approval, or appreciation of a suggestion, idea, or plan. When someone says "sounds good," they are indicating that they find the proposition appealing or acceptable.
The phrase "sounds good" combines the verb "sound," which comes from the Old English "sund," meaning "to be heard," and the adjective "good," which originates from the Old English "gōd," meaning "virtuous" or "effective." Together, they create a colloquial expression commonly used in day-to-day conversations.