A restaurant that mainly sells udon noodles (an udon shop).
昼休みに近くのうどん屋でかけうどんを食べた。
At lunchtime I ate a plain udon at a nearby udon shop.
あのうどん屋は手打ち麺が自慢だ。
That udon shop prides itself on its hand-made noodles.
子どもがうどん屋ののれんをくぐるのを嫌がった。
The child was reluctant to pass under the udon shop's noren (entrance curtain).