as soon as

conjunction

Used other than figuratively or idiomatically: see as, soon.
“I came as soon as I could.”
At the moment when; immediately (after); instantly; directly.
“As soon as he arrived, everyone gasped.”
“[…] that eye which watches guilt ⁠And goodness, and hath power to see ⁠Within the green the moulder’d tree, And towers fall’n as soon as built— […]”
Used to indicate that the first action mentioned is as likely as, or is preferred to, the second action mentioned.
“I'd jump out the window as soon as not.”
“He was a bad guy. He would hit you with a chunk of pipe as soon as look at you.”

Used other than figuratively or idiomatically: see as, soon.
“He might arrive as soon as three o'clock.”