sun – le soleil
(Pronounced so-lay)
To remember that sun is pronounced so-lay (soleil) in French, use the following mnemonic.
The sun's out, so I'll lay (soleil) down and get a tan.

Examples of soleil (sun) in a sentence
Le soleil brille aujourd'hui.
(The sun is shining today.)
J'adore le soleil!
(I love the sun!)
Le soleil se lève à l'est.
(The sun rises in the east.)