滑冰 (huá bīng) is the standard term for ice skating, a verb-object compound literally 'slide ice'. It differs from 滑雪 (huá xuě) 'skiing' (on snow with skis) and from 滑行 (huá xíng) 'to slide/coast' (a general motion, not a sport). The verb 滑 (huá) alone means to slip/slide, while 溜 (liū) appears in the colloquial synonym 溜冰 (liū bīng) for skating, often roller skating.