Alternative spelling of 高足蟹 (“Japanese spider crab”)

strange

a box-shaped receptacle, e.g. a coin bank or letter box (e.g. 銭函, 投函する) / to insert [into a container] (cf. 入れる, 容れる) / a suit of armor (more commonly 鎧)

forward compatibility

backward compatibility

attach / love

answer / response

祝く, 寿く: congratulate, wish well / 惚く, 呆く: be senile or mentally slow

北: (漢音; kan'on pronunciation)

飛び子: roe of the flying fish