12-Letter Words Containing: I,T,H,I,U,M

• something unspecified whose name is either forgotten or not known

• The xiphoid process, a small cartilaginous extension to the lower part of the sternum, usually ossified in the adult human.

• the process of the formation of humus from plant remains

• an ode honoring a bride and bridegroom

• The attitude or belief that a particular doctrine, culture, or social system, particularly a religious or political one, is superior and that it will or should triumph over all others.

• A person who collects match-related items, like matchbox labels, matchboxes, matchbooks, or matchbook covers.