The term "dropt kite" is a colloquialism that refers to an unexpected and sudden decline or drop in something. There are several synonyms that can be used interchangeably with this phrase, including plummet, dip, nosedive, collapse, and freefall. Each of these terms conveys a sense of rapid and abrupt decline, whether it is in the stock market, economy, or a person's health. Regardless of the context, "dropt kite" and its synonyms denote a drastic downturn in a situation, often one that catches people off guard. Therefore, it is important to be aware of these terms and use them appropriately to avoid any confusion or ambiguity in communication.