entrailles

/ɑ̃.tʁaj/
1.
nounfemininePlur

guts; internal organs; bowels

Après l'accident, les médecins ont examiné ses entrailles.

After the accident, the doctors examined his internal organs.

2.
nounfemininePlur

the innermost parts or depths (of a place or thing), often used figuratively

On a exploré les entrailles du vieux phare pour en découvrir l'histoire.

We explored the depths of the old lighthouse to uncover its history.