"dropoff" meaning in English

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      "expansion": "[Appendix:Glossary#deverbal|Deverbal]] from\", \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"English\", \"term\" : \"drop off\", \"status\" : \"missing\", \"lang\" : \"en\" } ], \"keyword\" : \"deverbal\" } ], \"lang_name\" : \"English\", \"term\" : \"dropoff\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"dropoff\">\nDeverbal from drop off.",
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  "etymology_text": "Deverbal from drop off.",
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  "pos": "noun",
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          "ref": "2007 March 6, Jacques Steinberg, “NBC Names New Chief for News Program”, in New York Times:",
          "text": "[…] Ms. Wallace will be charged with maintaining the program’s lead in the ratings […] while trying to staunch a dropoff in the program’s viewership.",
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  "word": "dropoff"
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