Complex sentence: An armourer or armorer (see spelling differences) is a member of a military or police force who maintains and repairs small arms and weapons systems, with some duties resembling those of a civilian gunsmith.
Split into simpler sentences: An armourer or armorer (see spelling differences) can refer to two roles. The word has also come to designate a member of a military or police force who maintains and repairs small arms, and weapons systems, with some duties resembling those of a civilian gunsmith.