while
[名]〔通例a ～〕（少しの）時間，期間，間a good [a great, quite a] whileかなりの間(for) a long while長い間a while ago [back]...
whiles
[副]((主にスコット))時々━━[接]((古))＝while
when [while] A's back is turned
Ａの気をそらした隙に，鬼の居ぬ間に（((略式))behind A's back）
while I'm [you're] at [about] it
((略式))ついでに
while one is about it
((略式))ついでに，その機会にClose the window while you're about it.ついでに窓を閉めてください
