The word "buzz" can refer to a few different things. Generally, it means a low, continuous humming or murmuring sound. For example, this sounds like the noise made by bees or a constant background noise of chatter in a crowded place. It can also refer to excitement or lively conversation, such as when something new or exciting is happening, creating a lot of discussion. In a more informal context, "buzz" can mean to be under the influence of drugs or alcohol, or the excitement surrounding a new event or trend.
The word "buzz" is of imitative origin, meaning it originates from the sound itself. It is thought to have first appeared in the English language around the late 14th century with a reference to the sound made by bees. Over time, it has evolved to encompass other meanings related to sound and excitement.