A or An Corrector — Never Mix Them Up Again
Choosing between a and an depends on the sound of the word that follows, not its spelling. Use an before a vowel sound and a before a consonant sound. This tool scans your text, finds article mistakes, and fixes them automatically.
Words like university, unique, user, and one start with a vowel letter but a consonant sound ("yoo"), while words like hour, honest, and heir start with a consonant letter but a silent h that leaves a vowel sound. These exceptions trip up even native speakers, and this tool accounts for the most common ones.
Frequently Asked Questions
It's based on sound, not spelling. Use an before a vowel sound and a before a consonant sound.
University is pronounced with a "yoo" sound, which behaves like a consonant, so a university is correct.
Hour has a silent h, so it's actually pronounced starting with a vowel sound, making an hour correct.