the first of a family line (e.g. John I) / the first position in a succession (e.g. the first presidency) / the first person to hold such a position (e.g. the first president)

successive generations (often in reference to emperors)

original title (as opposed to a title of a translation)

a slide (item of play equipment)

successive generations of a family etc. / (geology) eon

Kyūjitai form of 寝台 (“bed”)

ironing board (a long board on which one can iron)

diet

gallows (wooden framework on which persons are put to death by hanging)

grey plover / Short for 大膳職.