nested

Indeed, there’s a novel nested within this novel, a samizdat work recounting the history of World War II and its aftermath as we know it, in which the Germans and Japanese are defeated.

It was "bonkers", they added, to conduct a defence review without it being "nested" in a broader cross-government security review.

Traditionally, the Pope's remains would have been enclosed the day before the funeral in three nested coffins, made of cypress, lead, and oak.

He also requested to be buried in a single wooden casket, unlike his predecessors, who were buried in the traditional three nested coffins.

Previous pontiffs were buried in three nested coffins made of cypress, lead and oak.