Which prefix means within?

Which prefix means within?

• A. Across
• B. Around
• C. Among
• D. Within

Answer: (D)

Understanding prefixes that describe where something is located helps you read terms accurately. The word within conveys being inside the boundaries or interior of something. In nutrition and anatomy contexts, you might encounter phrases like within the cell or within the lumen, all signaling an interior position. The other options describe locations around or outside rather than inside: across means from one side to the other, around indicates surrounding the outside, and among indicates being in the middle of a group. So, the prefix that means inside or inner position is within.

Understanding prefixes that describe where something is located helps you read terms accurately. The word within conveys being inside the boundaries or interior of something. In nutrition and anatomy contexts, you might encounter phrases like within the cell or within the lumen, all signaling an interior position. The other options describe locations around or outside rather than inside: across means from one side to the other, around indicates surrounding the outside, and among indicates being in the middle of a group. So, the prefix that means inside or inner position is within.