to break something so that it does not separate, but very thin lines appear on its surface, or to become broken in this way
pledge
The UK chief executive has pledged to slash costs by £150m a year by 2014. pledge $32m/£100,000. EU leaders pledged $1.2 billion to the region over the next 18 months.
to say something while another person is speaking:
impromptu
an impromptu party/performance Footage showed Mr Trudeau, UK PM Boris Johnson and French leader Emmanuel Macron discussing an impromptu press conference held by Mr Trump