Are you referring to how the words "feel" in your mind (≈ average of a cluster of associated words) or about the sounds in the words? Plosives (PaT), sibilants

Are you referring to how the words "feel" in your mind (≈ average of a cluster of associated words) or about the sounds in the words? Plosives (PaT), sibilants (Sassy/SHow) or glottals (CoCKpit) sound "sharper" to me than their voiced equivalents (BaD, Zoo/menaGerie, GooGle). Fricatives (FaVorite, baTH/baTHE) or nasals (NuMber) or taps (RoLe) tend to sound longer and softer.