乳: milk; breast; latex (milky substance in plants) / 父: one's own father; a father figure; the Christian God / 致知: the pursuit of knowledge; / 遅遅, 遅々: slowness, tardiness; a long day

遅遅, 遅々: to be late

乳, 父: a surname / 父子: a place name

日日: day by day

日日: every day, daily

(onomatopoeia, slang) sexy

joke around, goof around / (offensive) bullshit

ひんこうほうせい: acting without blame, irreproachable conduct

Falun Gong

spectroscopy (scientific study of spectra)