흥망성쇠fortune; vagaries of fortune; rise and fall; ups and downs 노쇠decrepitude; infirmity of old age; senility 노쇠기senescence 성쇠fortune; vagaries of fortune 쇠락decline; deterioration 쇠망ruin; decline; fall 쇠잔failing; decline 쇠진exhaustion 쇠퇴기period of decline

노약자elderly or infirm people 노약자석seat for the elderly and infirm 약점weakness; shortcoming 취약weakness; frailty; fragility 취약성weakness; frailty; fragility; vulnerability 취약점vulnerable point 허약weakness; fragility; feebleness 강약strength and weakness 문약feeble state due to literary indulgence 박약feebleness