Which words contains an affix that means full of?

You're asking about words that use the affix "-ful" which means "full of". Here are a few examples:

-ful words:

* Beautiful: full of beauty

* Wonderful: full of wonder

* Joyful: full of joy

* Hopeful: full of hope

* Thankful: full of thanks

* Painful: full of pain

* Harmful: full of harm

* Successful: full of success

* Powerful: full of power

* Truthful: full of truth

Let me know if you'd like more examples or have other questions about affixes!