Definitions

1. noun

a symbol consisting of two crossed bones, often used to indicate that something is poisonous or deadly.

“The snake had a distinctive marking of crossbones on its back, warning potential predators of its venomous nature.”

2. noun

a skull and crossbones, often used as a symbol of piracy or death.

“The pirate flag featured a bold skull and crossbones, striking fear into the hearts of the crew’s enemies.”