IPA: //sʌbˈnoʊtˌbʊk//
KK: /sʌbˈnoʊtˌbʊk/
A small and lightweight computer that is more compact than a standard notebook computer, designed for portability and ease of use.
I bought a subnotebook for traveling because it's easy to carry around.
Subnotebook → It is formed from "sub-" (meaning under or below) and "notebook" (from Old English *noteboc*, meaning a book for taking notes). The word "subnotebook" refers to a smaller or more compact version of a notebook, typically a portable computer that is smaller than a standard laptop.
Think of something that is 'under' ('sub-') a regular notebook — a subnotebook is a smaller, more portable version of a notebook.