This is the 5447th most frequent Japanese word.
あら
An exclamation expressing surprise or mild astonishment, similar to "Oh!" or "Ah!" in English.
Used as an exclamatory expression to show surprise in reaction to discovering the time.
あら、もうこんな時間なの？急がなくちゃ。
Oh, is it already this late? I have to hurry.
Used to express realization or acknowledgment upon understanding a situation.
あら、そういうことだったのね。
Oh, so that is what it was.
Used as an interjection to express concern or attention after noticing someone fell.