Caisson and Hod

Caisson noun - A chest to hold ammunition.

Hod and caisson are semantically related In some cases you can use "Hod" instead a noun "Caisson".

Hod noun - An open box attached to a long pole handle; bricks or mortar are carried on the shoulder.

Caisson and hod are semantically related in holder for physical object topic. Sometimes you can use "Caisson" instead a noun "Hod".