pinpoint

Spain's Prime Minister Pedro Sánchez said investigators were trying to pinpoint the cause, and then would take all necessary measures "to ensure that this does not happen again."

"You want to be able to nail someone down and pinpoint who it is that's basically saying, 'We're getting the planes up in the air, and just stonewall the judge,'" Prof Tsai said.

The World Health Organisation said it was "near-impossible to pinpoint" how many lives have been saved as a result of the discovery.

Thankfully, snow looks unlikely this year, but in weather terms Easter is still too far away to pinpoint the exact details.

It’s a bit hard to pinpoint a specific moment.