So the outage figure comes from Zelenskyy.

Here, “outage” means a loss of electrical power.

In Kyiv, power cuts lasted eight to ten hours after damage to a major thermal power plant, a plant that makes electricity from heat.

A facility that makes electricity by using heat.

Russian state media said Ukrainian long-range drones set fire to the Kstovo refinery in the Nizhny Novgorod region overnight.

The drones caused the refinery to start burning.

The Guardian reported that US President Donald Trump had pressured Kyiv to stop strikes on Russian energy infrastructure, and that he blamed them for rising diesel prices.

The buildings and equipment used to produce and supply energy.

There was also a local ceasefire in Oleshky.

An agreement to stop fighting for a time in a particular area.

A six-day ceasefire, brokered by US first lady Melania Trump, allowed residents to leave.

An agreement to stop fighting for six days.

Zelenskyy said preparations were under way for talks involving Ukraine, Russia and the United States.

Here, it means the preparations had started and were happening.

The Guardian also reported that Russian officials said President Vladimir Putin was willing to speak with Zelenskyy by phone, but wanted European leaders left out of that call.

Here, “left out” means not included in the phone call.