1. A speech sound that is articulated with complete or partial closure of the vocal tract; in linguistics, a letter or character representing such a sound
The word 'consonant' contains several consonants such as 'c', 'n', 's', and 'n't'
A palavra 'consoante' contém várias consoantes como 'c', 'n', 's'.
2. Archaic: In agreement or harmony with; consistent with (used as a preposition in older Portuguese)