adjective:attractive in a delicate or pleasing way, without being strikingly beautiful
She wore a pretty dress to the garden party.
adjective:pleasant or enjoyable; causing a feeling of delight
The garden was a pretty place to relax after a long day.
adverb:to a moderately high degree; fairly
I'm pretty sure I locked the door when I left.
verb:to make something attractive or pretty
She decided to pretty up the room with some fresh flowers.