الشِّدَّةُ، الرَّخَاوَةُ، التَّوَسُّطُ
Stops, continuants, and intermediate phonetic qualities.
These are properties of articulation. A strongly articulated expression may feel suitable for a forceful concept, but it does not follow that every expression with strong consonants must denote something forceful.
Likewise, studying voiced and breathy characteristics does not displace the linguistic need to recognize accepted word–meaning assignments. Phonetics and conventional semantics can inform each other without being identical disciplines.