sire
male parent of an animal especially a domestic animal such as a horse
skinflint
a selfish person who is unwilling to give or spend
skittish
unpredictably excitable (especially of horses)
skulk
avoid responsibilities and duties, e.g., by pretending to be ill
sneak
to go stealthily or furtively
skullduggery
verbal misrepresentation intended to take advantage of you in some way
slate
a fine-grained metamorphic rock that can be split into thin layers
slander
words falsely spoken that damage the reputation of another
libel
a false and malicious publication printed for the purpose of defaming a living person
slay
kill intentionally and with premeditation
sheer
so thin as to transmit light
slew
(often followed by `of') a large number or amount or extent
veer
turn sharply; change direction abruptly