關鍵 guānjiàn HSK5 key Definitions Defs Origin Strokes Stroke Words Sentences Sents guānjiàn key · crucial 关 關 guān noun juncture A critical point; a barrier or difficult stage to overcome; a turning point键 鍵 jiàn nounadjective key part (bound form) most important part of something; crucial pointguānjiàn door bolt 关 關 guān bar (literary) A door bar or latch键 鍵 jiàn door bolt (literary) metal pin or bolt used to secure a door latch