たちまち
Meanings
1
in an instant; immediately; right away
usually written using kana alone
Describes something happening very quickly, often with a sense of 'before you know it'. Common in both spoken and written Japanese.
He answered the question immediately after hearing it.
As soon as it started raining, the street was instantly flooded.
2
usually written using kana alone
Emphasizes an abrupt, unexpected change. Often used when a situation transforms dramatically in a short time.
The sky suddenly grew dark and thunder began to rumble.
Usage patterns
- たちまち〈物〉が売り切れるfor something to sell out in an instant
This bread sold out in no time.
- たちまち〈事〉が広がるfor news or a rumor to spread quickly
The news spread through the whole town in an instant.
- たちまち〈事〉になるto suddenly turn into (a state or situation)
He suddenly became a celebrity.