knave

/neɪv/
noun
  1. A dishonest or unscrupulous man; a rogue.
    • In the story, the king was betrayed by a knave he trusted.
    • The knave tricked the villagers into buying fake gold.
    • She called him a knave after he lied about the contract.
  2. A playing card with the rank of jack, especially in older card games.
    • She held the knave of spades and hoped it would be enough.
    • He won the trick by playing the knave of hearts.
    • In this old deck, the knave is illustrated as a royal servant.
Antonyms
What does "knave" mean? | whatsthatwordmean | whatsthatwordmean