Use Of The A And An Questions Medium
The rule for using "A" or "An" before words starting with a silent "w" is to use "An." This is because the choice between "A" and "An" is determined by the sound that follows the article, not the actual letter. Since the "w" is silent, the word that follows it will begin with a vowel sound. In this case, we use "An" to maintain the smooth flow of speech. For example, we say "an hour" (pronounced as "an ow-er") and "an honest person" (pronounced as "an on-est person").