How to Spell an
an
//ən//
an - indefinite article
- Used as an article before words beginning with a vowel sound
- One; used before words beginning with a vowel sound
- Used to indicate a single but unspecified person or thing
Source: Merriam-Webster Dictionary API
"I need an apple for lunch."
Etymology
Middle English, from Old English {it}ān{/it} one {ma}{mat|one|}{/ma}
Middle English, from Old English ān (one)