On no account Meaning in English
expression
Definition
Used to emphasize that something must never be done, allowed, or considered, no matter what. It expresses a strict prohibition or strong warning.
Usage & Nuances
Very formal and emphatic; common in written instructions, rules, or serious warnings. Usually appears at the beginning of sentences for emphasis, followed by inversion ('On no account should you...'). Similar to 'under no circumstances', but 'on no account' often feels more personal.
Example Sentences
On no account should you open this door.
basic
On no account are students allowed to use phones in class.
basic
On no account must this medicine be taken with alcohol.
basic
On no account should you tell anyone my secret.
natural
On no account will I accept that kind of behavior.
natural
On no account should you try to fix the machine yourself—call the technician.
natural