godan verb (-su), intransitive verb
start running; break into a run
Describes a person or animal suddenly beginning to run.
彼は急に走り出した。
He suddenly started running.
犬が庭を走り出すのを見た。
I saw the dog break into a run in the yard.
godan verb (-su), intransitive verb
start moving (vehicle); take off; get under way
Used for vehicles, machines, or projects beginning to move or operate.
バスがゆっくり走り出した。
The bus slowly started moving.
新幹線が静かに走り出す。
The Shinkansen quietly gets under way.