Hoph'al is the counterpart to Hiph'il. Consider the first six binyanim as pairs. One is active (能動態), the other the passive (受動態). Although sometimes the meanings don't fit this pattern (for example נִכְנַס is a Niphal verb but it is active, it means "he entered" 入った). For example, the hiph'il form of אכל (eat) is הֶאֱכִיל (he'ekhil - he fed - 養った). The Hoph'al form is חָאֳכַל (ho'okhal - he was fed - 養われた). If a father is feeding food to a child, then the mother is doing הֶאֱכִיל and the child is doing חָאֳכַל.