commence
verb ~ (with sth) (formal) to begin to happen; to begin sth SYN START: [V] The meeting is scheduled to commence at noon. The day commenced with a welcome from the principal. I will be on leave during the week commencing 15 February. [VN] She commenced her medical career in 1956. The company commenced operations in April. to commence bankruptcy proceedings against sb [V ing] We commence building next week. [also V to inf]