must (EN)
فعل، اسم

فعل “must”

must
  1. باید
    You must wear a helmet to ride the bike safely.
  2. حتماً (در زمینه احتمال بالا یا قطعیت)
    She must know the answer, she studied all night.

اسم “must”

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