> Someone who knows the word courgette, probably knows the word zucchini. While someone who knows the word zucchini, might not know courgette. I don't see why

> Someone who knows the word courgette, probably knows the word zucchini. While someone who knows the word zucchini, might not know courgette. I don't see why this would be the case. More accurate would be: Someone who knows the word courgette, might not know the word zucchini. And someone who knows the word zucchini, might not know courgette.