Dropoff is a term that refers to a sudden decline in something, whether it's a physical object or a metaphorical concept. In order to convey this meaning in writing or speech, it's useful to have a range of synonyms to choose from. Some possible words that could be used instead of dropoff include decline, decrease, plummet, dip, fall, dive, nosedive, descent, slump, and drop. Each of these words has a slightly different connotation or shade of meaning, and using them interchangeably can add nuance and variety to your language. Whether you're discussing a stock market dropoff or a dropoff in energy levels, having a diverse vocabulary makes your communication more effective and interesting.