From Longman Dictionary of Contemporary Englishfall off phrasal verb1 fall off (something)SEPARATE if part of something falls off, it becomes separated from the main part The door handle keeps falling off. A button had fallen off her jacket.2 LESSif the amount, rate, or quality of something falls off, it decreases SYN fall OPP rise Audience figures fell off during the second series of the programme.3 somebody nearly/almost fell off their chair spokenSURPRISED used to say that someone was very surprised when something happened When I saw my brother on the stage I nearly fell off my chair. → fall off the back of a lorry at lorry → fall→ See Verb table
Examples from the Corpus
fall off• The railing on the porch looks like it is going to fall off.• Too easy to fall off and be dragged around by the heel.• A woman had fallen off and broken her pelvis.• Keep the napkin square on your lap or it will fall off, and you may not drop anything on the floor.• He fell off his bike and broke his wrist.• Jim was laughing so hard he fell off his chair.• In those days, the sweat would fall off my hands and I'd hear it hitting the floor.• Apply moleskin or a Band-Aid and leave in place until it falls off naturally in bath or shower.• There were other dangers besides falling off the branch.• A bag of groceries fell off the table onto the floor.• Any crumbs which fell off the table were pounced on by big bronze lizards - skinks.• A bolt broke on an amusement park ride, and several children who fell off were seriously injured.fall off (something)• The railing on the porch looks like it is going to fall off.• Too easy to fall off and be dragged around by the heel.• A woman had fallen off and broken her pelvis.• Keep the napkin square on your lap or it will fall off, and you may not drop anything on the floor.• In those days, the sweat would fall off my hands and I'd hear it hitting the floor.• Apply moleskin or a Band-Aid and leave in place until it falls off naturally in bath or shower.• There were other dangers besides falling off the branch.• Any crumbs which fell off the table were pounced on by big bronze lizards - skinks.fall-offˈfall-off (also falling-off British English) noun [singular] a decrease in the level, amount, or number of something SYN fall OPP risefall-off in a fall-off in profitsExamples from the Corpus
fall-off• The organizer says that retail consolidation was responsible for some of the fall-off.From Longman Business Dictionaryfall off phrasal verb [intransitive] another word for fallThe charity reported that gifts have fallen off by more than 60% in value. → fall→ See Verb table 