The wind whistled past the open window.
Meaning: The wind was making a high-pitched sound as it blew through the open window.
Choice of Words: Whistled is a verb that means to make a high-pitched sound by blowing air through a narrow opening. Open window is a window that is not closed. When you put them together, "the wind whistled past the open window" means the wind made a high-pitched sound as it blew through the open window.
Alternative Expressions
Related Expressions