Each of the eight nights you start by lighting the single candle at the top (shamus) and then using it to light the other candles starting from the candle representing the first day.
The English spelling of the 7 or 9-branched Hebrew candlestick is "menorah" (also "menorrah").
The Jewish symbolic candle holder is usually spelled menorah in English.This is an approximation of the pronunciation of the Hebrew word מְנוֹרָה.