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Related to fall off: fall off the wagon
1. To plummet downward off of something. Please be careful not to fall off the roof! I finally found my phone—it must have fallen off the bed.
2. To decline or lessen. Because this project is taking so long to complete, people's excitement about it has really fallen off.
3. To turn a ship in the direction of the wind. Captain, we need to fall off a little, so as to not hit that embankment.
fall off (of something)
to drop off something. (of is usually retained before pronouns.) A button fell off my shirt. I fell off the log. The twigs fell off of him as he stood up.
to decline or diminish. Business falls off during the summer months. My interest in school fell off when I became twenty.
1. To drop or descend from the top of something: I fell off the ladder and bruised my knee.
2. To become less; decrease: Stock prices fell off markedly, resulting in a loss for thousands of accounts. The number of staff meetings fell off after a few months as our initial enthusiasm waned. I started a new diet and the pounds fell off.
3. To lose weight. Used of livestock: Toward the end of the dry season, the cattle fall off rapidly.
4. Nautical To change course to leeward: We have a lot of pressure on the sail; let's fall off a little.