What does whistle mean?
whistle
Definition
Of a train, or of its driver: to blow the whistle, giving a loud high sound as a warning or a signal.
Example sentences
Every time the steam locomotive whistled, our youngest burst into tears.
Every time the steam locomotive whistled, our youngest burst into tears.
Why does the train have to whistle at every single crossing at five in the morning?
Why does the train have to whistle at every single crossing at five in the morning?