是的，也可以做可数名词。

n. 浪费；废物；荒地；损耗；地面风化物vt. 浪费；消耗；使荒芜vi. 浪费；变消瘦；挥霍钱财adj. 废弃的；多余的；荒芜的The waste was dumped in the sea.废物倒入海中。It's a waste of time and energy.那是浪费时间和精力。In my view it was a waste of time.依我看，这是浪费时间。I hate unnecessary waste.我憎恨不必要的浪费。It seems a pity to waste this food.浪费这些食物真可惜。

是不可数名词，例如：

1.They believe the statue is a waste of taxpayers' money.

他们认为这座雕像糟蹋了纳税人的钱。

2.The chops will fester and go to waste.

猪排会腐烂，给糟蹋掉。