get-go
1. [ noun ] the time at which something is supposed to begin
Synonyms: beginning start outset first kickoff showtime offset starting_time commencement
Examples:

"they got an early start" "she knew from the get-go that he was the man for her"

Related terms: end middle point threshold birth incipiency terminus_a_quo begin begin originate inaugurate
Similar spelling:   Geitz
  Gettys