Is It an STD or a STD?
It’s an STD. The abbreviation STD is pronounced as separate letters. Since the S starts with a vowel sound ("ess"), it takes the article "an".
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1 min read
Is It an SSD or a SSD?
It's an SSD (Solid-State Drive). The rule for using "a" or "an" is based on pronunciation, not spelling. Since the letter "S" begins with a vowel sound, we use "an" before SSD.
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1 min read
Is It an SMTP or a SMTP?
It's an SMTP (Simple Mail Transfer Protocol). Since the letter "S" begins with a vowel sound, we put "an" before the abbreviation SMTP.
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1 min read
Is It an SMS or a SMS?
It's an SMS (Short Message Service). Since the letter "S" starts with a vowel sound, the abbreviation SMS takes the indefinite article "an".
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1 min read
Is It an SLA or a SLA?
Because the letter "S" begins with a vowel sound, when pronouncing the abbreviation SLA as individual letters, an SLA is correct.
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1 min read
Is It an S or a S?
It’s an S. Because the pronunciation of the letter "S" begins with a vowel sound (it sounds like "ess"), we use the article "an".
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1 min read
Is It an RGB or a RGB?
It’s an RGB. We pronounce the abbreviation RGB as individual letters, and the letter "R" starts with a vowel sound; therefore, it takes the article "an".
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Is It a REM or an REM?
It's a REM. Because the acronym REM is usually pronounced as a word that starts with a consonant sound, we use the indefinite article "a".
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1 min read
Is It an R&D or a R&D?
It’s an R&D. Since the letter "R" begins with a vowel sound (similar to "are"), the abbreviation R&D takes the article "an".
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1 min read