There is one meaning in OED's entry for the adjective commenced. See 'Meaning & use' for definition, usage, and quotation evidence.

to begin to happen; to begin something. The negotiations are scheduled to commence at noon. I will be on leave during the week commencing February 15th.

What does the noun commence mean? There is one meaning in OED's entry for the noun commence. See 'Meaning & use' for definition, usage, and quotation evidence.

Commence definition: To begin; start.

commence meaning, definition, what is commence: to begin or to start something: Learn more.

The meaning of commence. Definition of commence. Best online English dictionaries for children, with kid-friendly definitions, integrated thesaurus for kids ...

Etymology. edit. From Middle English commencen, comencen (also as contracted comsen, cumsen), from Anglo-Norman comencer, from Vulgar Latin *cominitiāre, formed ...

1. To go about the initial step in doing (something): approach, begin, embark, enter, get off, inaugurate, initiate, institute, launch, lead off, open, set ...

to begin; start: [no object] Let the festivities commence. [~ + object] We can commence the meeting. [~ + verb-ing] Commence firing!

Commence means the first carrying out of any part of the licensed activities, save for pre- construction surveys and monitoring.