overtone

nouns

(usually plural) an ulterior implicit meaning or quality
"overtones of despair"
domain usage
the form of a word that is used to denote more than one
is a type of (narrower)
the message that is intended or expressed or signified
"what is the meaning of this sentence"; "the significance of a red traffic light"; "the signification of Chinese characters"; "the import of his announcement was ambiguous"
a harmonic with a frequency that is a multiple of the fundamental frequency