compound

Extra virgin olive oil, for example, is packed with antioxidants and beneficial compounds but its low smoke point means it is better for salad dressings or drizzling over food rather than deep frying.

On 9 September, Israeli jets fired missiles at a residential compound in the Qatari capital where Hamas's negotiating team was discussing a previous US ceasefire proposal.

Turning wood waste into gas also generates a thick, black tar composed of volatile organic compounds — which are also common contaminants following wildfires.

Constant alerts from warning systems might compound the problem, presenting professionals with a barrage of data they have to make sense of.

The most notorious was a compound known as Crouching Tiger Villa, where workers were routinely beaten and tortured.