IPA: /ˈsɜːrfˌbɔːrdɪŋ/
KK: /sɜrfˈbɔrdɪŋ/
A sport or activity where a person rides on a board over the surface of water, typically using waves.
Surfboarding is a popular activity at the beach during the summer.
Surfboarding → It is formed from "surf" (from the Old English *syrf*, meaning to ride on waves) and "boarding" (from "board" which comes from Old English *bord*, meaning a flat piece of wood). The word "surfboarding" refers to the activity of riding on waves while standing on a flat board.
Think of 'surfing' on waves and 'boarding' on a flat piece of wood — that's how surfboarding means riding waves on a board.