›to make someone give you exact details or a firm decision about something: nail sb down on sthWe've been trying to nail them down on the specific points of the agreement for the past six months.nail sb down to sthThings are getting urgent so we need to nail them down to a delivery date.
Are you a fan of shows like Doctor Who and Star Trek? Both shows have been around since the 1960s, and, not surprisingly, have generated some of their own vocabulary, some of which has now entered the Cambridge English Dictionary. The phenomenon of fandom, meaning “the state of being a fan of
a computer interface that provides information to users in normal, conversational speech in response to spoken requests Nearly every major tech company—from Amazon to Intel to Microsoft to Google—is chasing the sort of conversational user interface that Kaplan and his colleagues at PARC imagined decades ago.