IPA: //ˈswɒʃˌbʌkəl//
KK: /ˈswɑːʃˌbʌkəl/
To behave in a bold and adventurous manner, often in a theatrical or exaggerated way, like a hero in a story.
The actor decided to swashbuckle across the stage during the play, impressing the audience with his daring moves.
Swashbuckle is formed from "swash" (from Middle English *swashen*, meaning to splash or strike) and "buckle" (from Old French *bucler*, meaning to bend or to buckle). The word originally described a swaggering or showy display of bravado, often associated with sword fighting or adventurous behavior.
Imagine someone splashing around ('swash') while showing off their sword ('buckle') — that's how you remember that 'swashbuckle' means to display bravado or engage in adventurous antics.
No commonly confused words.