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Definition of aback

aback

/əˈbæk/
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aback Lexical Profile

aback Game Scores & Validity

• adverb

1

Into a state of sudden surprise, shock, or momentary confusion (used almost exclusively in the phrase 'taken aback').

Example

"She was completely taken aback by the committee's unexpected question during the interview."


2

In a nautical context, backward against the mast, with the wind blowing directly onto the front surface of the sails so as to check forward motion.

Example

"A sudden shift in the gale caught the schooner's topsails flat aback."

Synonyms
View all synonyms for aback

Word Nuance & Usage

In modern general English, 'aback' is almost exclusively restricted to the passive phrasal expression 'taken aback' (meaning surprised or disconcerted); its literal directional sense survives only as a technical nautical term.

• Rhymes for aback

Word Origin & Etymology

From Old English 'on bæc', meaning 'on or toward the back'. The modern figurative idiom 'taken aback' originated as a 19th-century nautical metaphor referring to a ship suddenly halted when a shift in wind presses its sails flat against the masts.

Cite this Entry


Wordmom. (2026). Definition of Aback. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/aback
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