"Everything good that's happened to me in my career is s...........," he said. (=happening by chance, unplanned)
serendipity
Officials are trying to p..................... the cause of widespread power cuts. (=desribe sth exactly)
pin down
I can never p................ what he said about me from my mind. (=clear, remove sth bad)
purge
You still can p.................. our services if you decide you like our cooperation. (=prolong, make longer)
protract
When lockdown was introduced we saw a r.................... of hybrid work. (=official introducion)
rollout
There's no s................ bullet, and they all take extra work to keep everything straight. (=miraculous solution)
silver