The prefix a or an means:

The prefix a or an means:

• A. Without or lack of
• B. With
• C. Around
• D. Against

Answer: (A)

The prefix a- or an- means without or not. It negates the root it attaches to, signaling the absence of something. In medical and scientific terms, this shows up in words like anaerobic (without oxygen), anesthesia (without sensation), aseptic (without infection), and anemia (lack of sufficient blood). The form changes to an- before a vowel sound, and to a- before a consonant sound. Other prefixes have different meanings: con- or com- means with, peri- or circum- means around, and anti- means against. So the idea being tested is recognizing that a/an is the negating prefix, indicating absence or lack.

The prefix a- or an- means without or not. It negates the root it attaches to, signaling the absence of something. In medical and scientific terms, this shows up in words like anaerobic (without oxygen), anesthesia (without sensation), aseptic (without infection), and anemia (lack of sufficient blood). The form changes to an- before a vowel sound, and to a- before a consonant sound.

Other prefixes have different meanings: con- or com- means with, peri- or circum- means around, and anti- means against. So the idea being tested is recognizing that a/an is the negating prefix, indicating absence or lack.