Only the words that are made up of them do. The individual letters in a word don't mean anything. By themselves, they simply indicate what sound you're supposed to make. For example, the letter s indicates the s sound (which sounds like ssssss).
About Rupert Boneham. Rupert Boneham (born January 27, 1964) is an American mentor for troubled teens, who became known to reality television audiences in 2003 as a contestant on Survivor: Pearl Islands where he placed 8th. He later appeared on the All Stars, Heroes vs. Villains, and Blood vs. Water seasons of Survivor, placing 4th, 6th, and 20th respectively.
He quickly became a fan-favorite character and maintained that status through the duration of the series. Many years before LOST was even an idea, Terry OâQuinn played Malcolm Engle in The Dare, S9/E4. This is my favorite Matlock episode of all time, involving some interesting twists from the normal format.