decommission /ˌdiːkəˈmɪʃən/ verb decommissions; decommissioned; decommissioning
decommissions; decommissioned; decommissioning
Learner's definition of DECOMMISSION
[+ object]
: to officially stop using (a ship, weapon, dam, etc.) : to remove (something) from service使（军舰、武器、水坝等）退役；停用