1. (verb) commence officially

• kick off

2. (verb) be a precursor of

• introduce
• usher in

1. (verb) commence officially

• commence
• embark on
• start
• start up

2. (verb) open ceremoniously or dedicate formally

• open

3. (verb) be a precursor of

• begin
• commence
• lead off
• start

1. (verb) commence officially

• dedicate
• swear in

1. (verb) commence officially

• beginning
• commencement
• first
• get-go
• kickoff
• offset
• outset
• showtime
• start
• starting time
• inaugural
• inauguration
• inauguration
• startup
• kickoff
• send-off
• start-off

2. (verb) open ceremoniously or dedicate formally

• inauguration
• startup

3. (verb) be a precursor of

• augury
• foretoken
• preindication
• sign