It’s an X. Since the pronunciation of the individual letter "X" begins with a vowel sound, we use the indefinite article "an".
It’s an X. Since the pronunciation of the individual letter "X" begins with a vowel sound, we use the indefinite article "an".
You can use an X to label a specific location.
You can use a X to label a specific location.
Be aware that the rule for using a or an is based on pronunciation, not spelling.
At the end of text messages, an X means both a kiss and the love behind it.
An x-plane was used to test a new aerodynamic technology.
Follow the same strategy with other consonants that are pronounced with a vowel sound, and therefore take the article "an"; for example, we say:
We also use the indefinite article "an" before a range of abbreviations that begin with the letter "X" but have an initial vowel sound, so we say "an X-ray", "an XL" (eXtra Large), or "an XML" (eXtensible Markup Language).
