To send or officially charge someone or some group to do something.
James Bond was commissioned with recovering the secret documents.
To place an order for (often piece of art)
He commissioned a replica of the Mona Lisa for his living room, but the painter gave up after six months.
To put into active service
The aircraft carrier was commissioned in 1944, during WWII.
The process of assuring that all systems and components of a major piece of equipment, a process, a building or similar are designed, installed and tested according to the operational requirements of the owner or final client.
The destroyer's commissioning will be held on February 1st.