1. a simple musical instrument consisting of a small metal tube with finger holes, played by blowing

Examples

• The street musician played a lively tune on his pennywhistle.
• She learned to play the pennywhistle in her folk music class.
• The pennywhistle’s clear, bright sound carried across the park.
• He kept a small pennywhistle in his pocket for impromptu performances.
• The traditional Irish song sounded beautiful on the pennywhistle.
• Children often start with a pennywhistle before learning more complex wind instruments.