S
Samuel Johnson
sans-serif
Sapir–Whorf hypothesis
sarcasm
Saxon genitive
Scandinavian
scheme
Scottish
scratch comma (/)
section (§)
semantics
semaphore
semasiology
sememe
semicolon (;)
semiotics
sentence
separatrix (|)
serial comma
serif
sesquipedalian
shall will
shear sheer
shibboleth
shorthand
Siamese Twins
sideroxylon
sigmatism
sign
sign (Saussure)
signifier
simile
simple adverb
simple sentence
singular
singular "they"
singulare tantum
slang
sniglet
sociolect
soft palate
solecism
solidus (⁄)
soraismus
speaking in tongues
spelling numbers
split infinitive
spoonerism
Sprachraum
square brackets ([ ])
stationary stationery
stem
stenography
strong and weak verbs
subject
subject complement
subordinate clause
subordinate conjunction
subordinator
substantive
such as
suffix
superlative
superlative of two
superordinate
suppletion
suspended compound adjective
suspended hyphen
suspension point (…)
SVO
swung dash (~)
syllabary
syllabification
syllable
syllepsis
synaeresis
synaesthesia (literary)
synaesthesia (medical)
synaloepha
synchysis
syncopation
syncope
synecdoche
synonym
synonymia
synonymy
syntax
systole
systrophe