What does the prefix pen mean?

The prefix "pen" has a few different meanings depending on the context. Here are a few common ones:

* Five: This is the most common meaning, derived from the Greek word "pente." For example:

* Pentagon: A five-sided figure.

* Pentameter: A line of poetry with five metrical feet.

* Pentathlon: A competition with five events.

* Almost, nearly: This meaning is less common, but it can be found in words like:

* Penultimate: Next to last.

* Penumbra: A partial shadow.

It's important to consider the context of the word to understand the correct meaning of "pen."