This is the 6764th most frequent Japanese word.
ビーフン
Rice vermicelli.
The word 'ビーフン' refers to 'rice noodles' in this description.
ビーフンは米から作られた麺です。
Rice noodles are made from rice.
Here, 'ビーフン' is used as the main ingredient of the dish.
昼食にビーフン炒めを食べました。
I ate stir-fried rice noodles for lunch.
'ビーフン' is the subject of personal preference.