gone below the surface of a liquid; plunged; immersed.

deeply involved; engaged in a subject single-mindedly.

a risk, peril, danger or jeopardy; a hazard.

marked courage or bravery; valour.

the quality or fact of being impossible; impossibility.

the state or quality of being terrible or monstrous; terribleness; monstrosity.

a risk, peril, danger or jeopardy; a hazard.

marked courage or bravery; valour.

the quality or fact of being impossible; impossibility.

the state or quality of being terrible or monstrous; terribleness; monstrosity.

the act of pressing hard or closely.