1 (wiktionary) 2 (zh.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.

HSK 2.0 (2010)	Gb	Pin	Eng
1	开	kai1	to open/ to start/ to turn on/ to boil/ to write out (a medical prescription)/ to operate (vehicle)/ abbr. for 開爾文\|开尔文 degrees Kelvin
5	滚	gun3	to boil/ to roll/ get lost (imperative)/ take a hike
5	煮	zhu3	to cook/ to boil
6	熬	ao2	(of cooking) to boil for a long time/ to endure/ to suffer

HSK 3.0 (2022)	Big5	Gb	Pin	Eng
5	滾	滚	gǔn	to boil, to roll, to take a hike, Get lost!
7	熬	熬	áo	to boil, to simmer, to cook on a slow fire, to extract by heating, to decoct, to endure
7	沸騰	沸腾	fèiténg	(of a liquid) to boil, (of sentiments etc) to boil over, to flare up, to be impassioned