The word "tight" generally means something that is firmly held in place or closely attached. It can refer to physical objects, like a tight lid on a jar, or it can describe situations, relationships, or emotions that are strong, intense, or restricted. For example, a "tight schedule" means having little time to spare.
The word "tight" comes from the Old English word "tiht," which means "tight, close, or secure." It has Germanic roots and is related to similar words in other languages, indicating a long history of usage.