Based on the official HSK 3.0 syllabus

HSK 7–9 vocabulary

5,600 words first listed at this level · 11,000 cumulative · showing 2351–2400 of 5,600. English meanings from CC-CEDICT. See also HSK 7–9 graded readings.

HSK 7–9 vocabulary, page 48
Word	Part of speech	Meaning	Readings
可想而知kěxiǎng’érzhī	idiom	it is obvious that...
可笑kěxiào	adjective	funny
可疑kěyí	adjective	suspicious
刻不容缓kèbùrónghuǎn	idiom	to brook no delay
客房kèfáng	noun	guest room
刻画kèhuà	verb	to portray
客机kèjī	noun	passenger plane
刻苦kèkǔ	adjective	hardworking
客流kèliú	noun	passenger flow
克隆kèlóng	verb	clone
刻意kèyì	adverb	intentionally; deliberately; purposely	In 1 reading Reflections on Studying Abroad
客运kèyùn	noun	passenger transportation
克制kèzhì	verb	to restrain
刻舟求剑kèzhōu-qiújiàn	idiom	lit. a notch on the side of a boat to locate a sword dropped overboard; fig. an action made pointless by changed circumstances
啃kěn	verb	to gnaw
恳切kěnqiè	adjective	earnest
恳求kěnqiú	verb	to beg
坑kēng	noun, verb	pit; depression; hollow
空荡荡kōngdàngdàng	adjective	empty; deserted
空洞kōngdòng	noun, adjective	cavity
空间站kōngjiānzhàn	noun	space station
空军kōngjūn	noun	air force
空难kōngnàn	noun	air crash
空前kōngqián	verb	unprecedented
空想kōngxiǎng	verb, noun	daydream
空虚kōngxū	adjective	hollow
孔kǒng	noun	hole
恐怖kǒngbù	adjective	terrible
恐吓kǒnghè	verb	to threaten
恐慌kǒnghuāng	adjective	panic
恐龙kǒnglóng	noun	dinosaur
空白kòngbái	noun	blank space
控告kònggào	verb	to accuse; to charge; to indict
空隙kòngxì	noun	crack
抠kōu	verb, adjective	to dig; to pick; to scratch (with a finger or sth pointed)
口岸kǒu’àn	noun	a port for external trade
口碑kǒubēi	noun	public praise
口才kǒucái	noun	eloquence
口吃kǒuchī	verb	to stammer; to stutter
口径kǒujìng	noun	bore; caliber; diameter; aperture
口令kǒulìng	noun	oral command
口气kǒuqì	noun	tone of voice
口哨儿kǒushàor	noun	whistle
口水kǒushuǐ	noun	saliva
口头禅kǒutóuchán	noun	Zen saying repeated as cant
口香糖kǒuxiāngtáng	noun	chewing gum
口音kǒuyīn	noun	(linguistics) oral speech sounds
口罩kǒuzhào	noun	mask (surgical etc)
口子kǒuzi	noun	hole
扣除kòuchú	verb	to deduct