boyhood — Boyhood is the period of a male person's life during which he is a boy.
childish — Childish means relating to or typical of a child.
manhood — the state or time of being a man or adult male person; male maturity.
Three-syllable rhymes
adulthood — Adulthood is the state of being an adult.
neighborhood — the area or region around or near some place or thing; vicinity: the kids of the neighborhood; located in the neighborhood of Jackson and Vine streets.
