It’s a UFO. Since the abbreviation UFO (Unidentified Flying Object) begins with a consonant sound (a “you” sound), we use the indefinite article “a”.
It’s a UFO. Since the abbreviation UFO (Unidentified Flying Object) begins with a consonant sound (a “you” sound), we use the indefinite article “a”.
A UFO is any aerial phenomenon that cannot be immediately explained.
An UFO is any aerial phenomenon that cannot be immediately explained.
Remember, the rule for using "a" or "an" is based on pronunciation, not spelling, and the first letter of the acronym UFO has a consonant sound.
The case was classified as a UFO sighting.
She encountered a UFO that was shaped like a triangle.
Similarly, we say a "U" (not "an U").
The word UFO begins with a "U".
Other abbreviations that also start with a consonant sound, and therefore take the article "a", are listed below: