(mahjong) the retainment of the east or 親 (oya, “dealer”) position after a win / (by extension) events that are repeated or in a series

consecutive / sequential / serial numbering

(typography) the ban on separating multiple successive digits during line breaking

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

milk / breast