동갑同甲 same age 환갑還甲 age 60; 60th birthday 회갑回甲 one's sixtieth birthday; the age of sixty 회갑연回甲宴 one's sixtieth birthday party 갑甲 the former; the one; A 갑각류甲殼類 crustaceans 갑론을박甲論乙駁 heated debate 갑부甲富 superrich 갑상선甲狀腺 thyroid 갑주甲胄 armor and helmet 갑판甲板 deck 갑판장甲板長 boatswain 둔갑遁甲 transformation 삼수갑산三水甲山 hermitage; faraway place 육갑六甲 silly remark; stupid behavior 진갑進甲 61st birthday 철갑鐵甲 armor 육십갑자六十甲子 yuksipgapja