Definition of trunk:

part of speech: noun

A box or chest, particularly one covered with leather or skin, so called as resembling the trunk or chest of a man's body; the stem or body of a tree apart from its branches; the main body of anything; the proboscis of an elephant; the part of the body between the head and the abdomen; a water- course made of planks.

Usage examples:

• But he won't fire from his trunk as I do from the rifle. Henryk Sienkiewicz in "In Desert and Wilderness".

• Instead he flung a rope around the tree and with its aid climbed higher and higher on the trunk Henryk Sienkiewicz in "In Desert and Wilderness".

• He ran to his trunk to get a weapon, for he was in his balloon costume, but suddenly stopped short. Ralph Bonehill in "Leo the Circus Boy".

• And when the elephant nodded his trunk in reply she turned to Stas: There, you see he says 'Yes. Henryk Sienkiewicz in "In Desert and Wilderness".