shammas

/ˈʃɑːməs/
noun
  1. A candle used to light the other candles on a Hanukkah menorah; also called the shamash.
    • The shammas stands taller than the other candles on the menorah.
    • Make sure the shammas is in the center before you light it.
    • We lit the shammas first and then used it to light the other candles.