beginning

the event consisting of the start of something; "the beginning of the war"

• casus belli — an event used to justify starting a war
• emergence, egress, issue — the becoming visible
• origin, origination, inception — an event that is a beginning; a first part or stage of subsequent events
• genesis, generation — a coming into being
• emergence, outgrowth, growth — the gradual beginning or coming forth
• start — the beginning of anything
• creation, conception — the event that occurred at the beginning of something

• happening, occurrence, natural event — an event that happens