The phrasal verb "fall off" is predominantly used in informal contexts, but can also appear in more formal writing when describing trends, statistics, or tangible contexts. It generally indicates a decrease in degree, amount, or intensity, as seen in phrases like "sales have fallen off" or "interest in the product has fallen off," depicting a decline. In a physical sense, it may refer to detachment or separation from an elevated position, such as "the picture fell off the wall." It is versatile and easily understood, making it suitable for both spoken and written communication. Its application can be metaphorical or literal, enhancing its usefulness across various contexts. However, in highly formal scenarios, more precise terminology might be preferred.
B1
PreIntermediate
1. To tip or drop from a higher place or position to a lower one.
The picture fell off the wall because the nail was loose.
Be careful, or the books will fall off the shelf.
2. To become less in amount, quality, or rate.
Sales tend to fall off during the winter months.
After the initial excitement, interest in the project began to fall off.
3. To decrease in performance or intensity.
Her singing performance fell off towards the end of the concert.
Due to his recent illness, his energy levels have fallen off significantly.