introduction (e.g. of a new idea)

introduce

pupil, student (a child who goes to elementary school) / (law) child, juvenile, person(s) under 18 years of age under the Japanese Child Welfare Law

riot

two or more words derive from the same source; cognate

a road, a roadway, a carriageway / (more specifically, legal) a traffic lane: that portion of a road that is marked for use by automobiles (and not for bicycles or pedestrians)

kyudo

a public street, a local road, a road without tolls

(physics) conduction band; a range of electron energies in an insulator or semiconductor in which electrons can move freely and transport charge.

restart; reboot