Meaning of the word aback in English

What does aback mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

aback

US /əˈbæk/
UK /əˈbæk/

Adverb

taken by surprise; startled

Example:
I was taken aback by her sudden outburst.
He was a little taken aback by the direct question.