Unverified50% confidenceFactExact time
"An FBI agent" uses an because the letter F is read as /ɛf/, which begins with a vowel phoneme.
1
Sources
50%
Confidence
Long-term
Relevance
9/20/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedAn is used when the following word begins with a vowel phoneme, and a is used when it begins with a consonant phoneme.57% similarUnverifiedAn initialism is pronounced letter by letter, while an acronym is pronounced as a whole word, and article selection follows actual pronunciation.51% similar
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