乾かんパンかんパンFreq.FrequencyTop 100,000Meanings1nounhardtack; hard biscuit; crackerRefers to a dry, hard, long-lasting biscuit or cracker, often associated with emergency rations or military supplies.非ひ常じょう食しょくとして乾かんパンを備び蓄ちくしている。We stock hardtack as emergency food.