metaphor

Definition
A writing technique that refers to one thing by mentioning another, in comparison or by contrast.

Annotated examples

And I understood finally that a nation is a house with no windows or doors at all.That no matter what I did-- no matter how much blood I spilled in its defense or ink I spent in its praise-- it would never, ever be my home. - Harrow. E. A, Ch. 15, The Everlasting (see also allegory)

A sound like someone falling through the air without ever touching ground, her voice pierced the thin walls with the hellish mix of a yodel and a howl.
Vuong, Ocean, Ch. 3, The Emperor of Gladness (see also hyperbole)