SABRINA:  From name of maiden in Celtic legend who is said to have given the name of the Severn River.  Diminutives Sabbie and Sabby, exist. 

SALLY:  Diminutive of Sarah, "princess."  Name is often used to form compound names such as Sally Ann, and Sally Jane.  Diminutive is Sal.

SALOME:  Biblical name meaning "peace."

SAMANTHA:  Feminine equivalent of Samuel, "told by God" or "name of God."  Said by some to be of Greek derivation, meaning "sandy shore."  Diminutives include Sam and Sammy.

SANDRA:  Diminutive of Italian Alessandra, "defender of mankind."  Variants, Sandy, Saundra and Sondra, exist.

SANDY:  Diminutive of Alexandra or Sandra, "defender of mankind." Variant, Sandie, exists.

SARAH JANE:  see Jane.

SARAH:  Biblical name meaning "princess."  Variant, Sara, exists.  Diminutives include Sadie, Sally, and Sassie.

SASHA:  Russian diminutive of Alexandra, "defender of mankind."  French variant, Sacha, exists.

SCARLETT:  Middle English name meaning "scarlet."  Variant, Scarlet, exists.

SELIMA:  Hebrew name meaning "peaceful."

SELINA:  Name of Greek goddess of the moon.  Variant, Selena, exists.

SERENA:  Latin name meaning "serene."

SEROPHIA:  meaning unknown.

SHARMAIN:  see Charmaine.

SHARMAINE:  see Charmaine.

SHARON:  Biblical place name, the valley in Palestine, "a plain."  Variants include Sharona, Sharron and Sharyn.  Diminutive is Shari.

SHEBA:  Diminutive of Bathsheba, "daughter of oath" or "seventh daughter."

SHEENA:  Irish/Gaelic equivalent of Jane, "the Lord is gracious."  Variant, Sheenagh, exists.

SHEILA:  Irish equivalent of Cecilia, "blind."  Variant, Shelagh, exists.

SHELLEY:  Old English place name meaning "meadow on the ledge."

SHEREE:  see Cherie.

SHERI:  see Cherie.

SHERIE:  see Cherie.

SHERILL:  see Cheryl.

SHERRY:  A variant of Cher, "dear," Sharon, "a plain," and Cheryl, "manly."  Also used as a diminutive of Cherie, "dear one."

SHERYL:  see Cheryl.

SHIRLEY:  From Old English place name, "bright meadow."  Variants include Sherley and Shirlee.  Diminutive, Shirl, exists.

SIĀN:  Welsh form of Jane, "the Lord is gracious."  Sometimes regarded as feminine equivalent of Sean, "the Lord is gracious."  Also spelled without accent.  Diminutive is Siani.

SIB:  see Isabel and Sybil.

SIDNEY:  Feminine equivalent of Sidney, "from Saint Denis."  Variants include Sydney and Sydne.

SIDONIE:  French form of Latin name Sidonia, "woman of Sidonia."  Variant, Sidony, exists.

SILVIA:  Feminine form of Latin Silvius, "of the forest."  Variant, Sylvia, exists.

SIMONE:  French feminine form of, Simon, "good listener."  Variant, Simona, exists.  Diminutives include Simmie and Simmy.

SINDY:  see Cindy.

SINEAD:  Irish form of Janet, "the Lord is gracious."  Name is pronounced "Shinade."

SIOBHAN:  Irish form of Joan, "the Lord is gracious."  Name is pronounced "Shivawn."

SISSY:  see Cissie.

SKEETER:  From nickname for active or small person or for someone who skeets (scoots).

SONIA:  Russian diminutive of Sofiya, "wisdom."  Variants are Sonya and Sonja.

SOPHIA:  From Greek word meaning "wisdom."  Variants, Sophie and Sofia, exist.  Diminutive is Sonya.

SOPHIE:  French form of Sophia, "wisdom."  Variant, Sophy, exists.

SOPHRONIA:  Greek name meaning "prudent" or "sensible."  Diminutives include Sophie and Sophia.

SPERANCITA:  meaning unknown.

SPRING:  From the season.

STACY:  Diminutive of Anastasia, "resurrection."  Variants include Stacey, Staci, and Stacie.  Diminutive is Stace.

STELLA:  Latin name meaning "star."  Variant, Estelle exists.

STEPHANIE:  French feminine equivalent of Stephen, "crown; garland."  Variants include Stefanie, Stef, Steffie, and Stevie.

STORM:  From standard word.

SUE:  Diminutive of Susan, "lily."  Variant, Su, exists.

SUNDAY:  From day of week. 

SUSANNAH:  Biblical name meaning "lily."  Variants include Susanne, Susanna, and French Suzanne.  Diminutives include Susie, Suzi, Suzie, Suky, Suzy, and Susan.

SYBIL:  Greek name meaning "seer; prophetess."  Variants include Sibyl and Cybill.  Diminutive, Sib, exists.

SYLVIA:  Variant of Silvia, "of the forest."  French variant, Sylvie, exists.  Diminutives include Syl, and French Sylvette.