(archaic) a woman's brother (regardless of age difference) / (archaic) a woman's lover or husband / (archaic) a familiar man

Kyūjitai form of 物理化学 (“physical chemistry”)

Kyūjitai form of 物理学: physics

物理化学: physical chemistry

physical chemistry

physics (as an area of study)

(archaic) the eldest sibling

(rare) an elder brother

pronoun referencing an older brother figure: you, he

elder brother / elder brother-in-law / Short for 花の兄 (hana no ani): alternative name for the 梅 (ume), the Japanese plum (Prunus mume)