must (EN)
verbo, sustantivo

verbo “must”

must
  1. debe
    You must wear a helmet to ride the bike safely.
  2. debe de (para indicar alta probabilidad o certeza)
    She must know the answer, she studied all night.

sustantivo “must”

sg. must, pl. musts
  1. necesidad
    For a successful cake, precise measurements are a must.