Common Words:
* Swim
* Swear
* Sweet
* Swing
* Swallow
* Sweat
* Sweep
* Switch
* Sword
* Swirl
Less Common Words:
* Swarm
* Swathe
* Swash
* Swat
* Sway
* Swell
* Swift
* Swoon
* Swoop
* Sworn
Other Words:
* Swan
* Sweden
* Swiss
* Swoop
* Swarm
* Swallow
* Swear
* Sweater
* Sweet
* Sweep
* Swing
* Switch
* Sword
This is just a small sample. There are many more words that begin with the "sw" sound!