fortis

Relatively strongly articulated, hence voiceless and possibly aspirated; especially as compared to the others of a group of homorganic consonants.

Unaspirated [p] is fortis in French, the corresponding lenis consonant being [b]. The same sound is lenis in Danish, the corresponding fortis consonant being [pʰ].

All vowels, whether short or complex, are relatively shorter when followed by a fortis consonant and relatively longer when followed by a lenis one or, for those where this is possible, when no consonant follows (in free or unchecked syllables).

A fortis consonant.