He crossed his fingers for luck.
Meaning: He made the shape of an X with his fingers in the hope that it would bring him good fortune.
Choice of Words: Crossed means to place one thing over another in the form of an X. His is a possessive pronoun that refers to something belonging to a male person. Fingers are the long, slender digits of the hand. For is a preposition that indicates a purpose or reason. Luck is a positive outcome that is believed to be caused by chance.
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Related Expressions