The letter "ű" is a character used in the Hungarian alphabet. It represents a long vowel sound, similar to the English "u" but pronounced with a more rounded mouth shape. This letter is important for distinguishing meanings in Hungarian words, as vowel length can change the meaning entirely. In addition to its unique pronunciation, "ű" is part of a group of accented letters in Hungarian, which include characters like "á," "é," "í," "ó," and "ö." These letters help convey specific sounds that are essential for proper communication in the Hungarian language.