The phrase "Dunkirk spirit" is often used to describe the bravery, determination, and resilience shown by the British people during times of national crisis. Synonyms for this term may include phrases like "indomitable spirit", "pluck", "grit", and "fortitude". Other similar phrases that convey the same sentiment include "never-say-die attitude", "perseverance", "resilience", and "tenacity". All of these words and phrases share a common thread: they describe the ability to push through difficult times with courage, strength, and unwavering determination. In times of national crisis, these qualities are essential for overcoming adversity and coming out stronger on the other side.