nonstopadj/ˌnɒnˈstɒp/

• 1

  Without stopping; without interruption or break.

  • There's a nonstop flight to Mauritius, but I'm not sitting on the same plane for thirteen hours.
  • Christmas in Strasbourg and the rest of Alsace is officially feted from the last Saturday in November through Dec. 31 in a month full of nonstop markets, concerts, torch-lighted forest walks, parades, live Nativity scenes, storytelling, theater and public aperitifs.
• 2

  biologygeneticsmedicineDescribing a point mutation within a stop codon that causes the continued translation of an mRNA strand.

nonstopadv/ˌnɒnˈstɒp/

• 1

  Without stopping; without interruption or break

  • He worked nonstop for fourteen hours yesterday, just so he could get today off.

nonstopnoun/ˌnɒnˈstɒp/

• 1

  lifestyletourismtransportA nonstop journey, especially a nonstop flight.

  • With business-class seats on nonstops from British Airways and Cathay Pacific often priced up to $8,000 round trip, Mr. Exton typically flew cheaper alternatives that saved money but required layovers and plane switches.
• 2

  A convenience store in parts of Europe, open 24 hours a day.

  • [In Hungary:] Most department stores and gift shops are open weekdays 10–5 or 6, Saturday until 1. Grocery stores are generally open weekdays from 7 or 8 am to 7 pm; “nonstops,” or éjjeli-nappali,^([sic]) are open 24 hours.
  • There's usually something open on most holidays apart from the evening of 24 December when even the nonstops stop.
• 3

  human-scienceslinguisticssciencesA linguistic sound that is not a stop; a continuant.

  • Some of these consonants are stops, some are non-stops (continuants, see 11.2); some are voiced, others voiceless. It doesn't therefore look as if these consonants can have anything in common.