底牌 dǐpái hole card Origin Definitions Defs Strokes Stroke Words Sentences Sents dǐpái hole card · trump card 底 dǐ nounlocative bottom The lowest part of an object or body of water; base; foundation牌 pái noun cards playing cards; mahjong tiles; dominoesdǐpái bottom line 底 dǐ adverb ins and outs The truth behind a matter; the underlying details or background information牌 pái noun cards playing cards; mahjong tiles; dominoes