Which prefix means "one"?

Which prefix means "one"?

• A. Many
• B. After
• C. One
• D. False

Answer: (C)

Understanding prefixes that indicate quantity helps you spot the one that denotes a single unit. The option that uses the term “one” clearly communicates a singular quantity, which matches the idea of a prefix meaning one. In medical language, prefixes like mono- or uni- express that single concept, and this choice aligns with that meaning by directly stating one. The other options point to different ideas: “many” signals multiplicity, “after” signals position in time or sequence, and “false” signals negation or pseud-. So the meaning sought—the idea of a single unit—is captured by the option that literally says one.

Understanding prefixes that indicate quantity helps you spot the one that denotes a single unit. The option that uses the term “one” clearly communicates a singular quantity, which matches the idea of a prefix meaning one. In medical language, prefixes like mono- or uni- express that single concept, and this choice aligns with that meaning by directly stating one. The other options point to different ideas: “many” signals multiplicity, “after” signals position in time or sequence, and “false” signals negation or pseud-. So the meaning sought—the idea of a single unit—is captured by the option that literally says one.