on the dot

on the dot

if something happens at a particular time on the dot, it happens at exactly that time. Shops in this part of the city shut at 5.30pm on the dot. The first customers arrived on the dot of 9am. (sometimes + of)

See also: dot

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on the dot

exactly. You've got to be here at 9 on the dot or we won't make the train.

Usage notes: used mainly of time and in the form of the example

See also: dot