Semantics
absent referent
arbitrariness
cacophemism
connotation
denotation
denotatum
designatum
dysphemism
dystmesis
euphemism
exemplification
garden path sentence
heteronym
homograph
homophone
hyperonym
hyponym
langue
ostensive definition
parole
polysemy
referent
semantics
semasiology
sign (Saussure)
signifier