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.
Chad Lowe. Charles Davis Chad Lowe II (born January 15, 1968) is an American actor and director. He is the younger brother of actor Rob Lowe. He won an Emmy Award for his supporting role in Life Goes On as a young man living with HIV. He has also had recurring roles on ER, Melrose Place, and Now and Again.