wave and pay - definition and synonyms

noun [uncountable] 

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/ˌweɪv ən ˈpeɪ/
  1. a system of paying for small purchases by moving a credit card or mobile device in front of a special machine which automatically reads the information

    London bus passengers have become the first in any major city to use wave and pay plastic cards on public transport.

derived word

wave and pay

  verb [intransitive]

Many stores are being slow to install the technology that lets people wave and pay.