a pit; a hole in the ground; a depression

a ridge of earth between fields; a small bank of soil

a critical juncture; a threshold; a key moment or difficulty that is hard to overcome

the kǎn trigram (☵) or hexagram (䷜) from the 八卦 bā​guà, representing water and danger

(abbreviation) the unit of luminous intensity, candela

(literary) the sound of percussion, such as drumming or chopping wood

professional jargon; underworld argot; enigmatic or insinuating language

a Chinese surname