IPA: /ˈsaɪdweɪz/
KK: /ˈsaɪdweɪz/
In a position or direction that is not straight, but rather to the side.
The cat walked sideways to avoid the puddle.
In a direction that is to the side, rather than forward or backward.
She took a step sideways to avoid the puddle.
Sideways → It is formed from "side" (from Old English *side*, meaning the lateral part of something) and "-ways" (from Old English *weg*, meaning manner or direction). The word "sideways" describes a manner or direction that is toward the side.
Think of the 'side' of something and how 'ways' indicates direction — so 'sideways' means moving in the direction of the side.