noun
three outs
Baseball term for the state of having three outs, ending the half-inning.
スリーアウトでチェンジです。
Three outs, change sides.
あと一つでスリーアウトだ。
One more and it's three outs.
Variant with interpunct, less common in running text.
アウト is a single out; スリーアウト specifically means three outs.
スリーアウトチェンジ is a common phrase meaning 'three outs, change sides', often used as a set expression.
Loanword from English 'three out(s)', used in baseball.