What are five base word?

It seems like you're asking for five examples of "base words". A base word is the simplest form of a word, without any prefixes or suffixes. It's the core meaning of a word. Here are five examples:

1. Play (You can add prefixes like "re" or suffixes like "-er" to make new words)

2. Happy (You can add "-ness" to make "happiness")

3. Run (You can add "-ing" to make "running")

4. Read (You can add "re" to make "reread")

5. Friend (You can add "-ly" to make "friendly")

Let me know if you want to explore more base words or if you have another question!