top board; surface
Refers to the top board or surface of a table, counter, or similar flat piece of furniture. Not to be confused with 甲板 (かんぱん), which means 'deck' of a ship.
The top board of the table got scratched.
カウンターの甲板をきれいに拭いてください。
Please wipe the counter surface clean.
Compound of 甲 (こう, 'top' or 'surface') and 板 (いた, 'board'). The reading こう is an on'yomi, while いた is a kun'yomi, forming a jūbako-yomi word.