1. Characters that are not standard alphanumeric symbols, including punctuation marks, mathematical symbols, diacritical marks, and other non-letter/non-number symbols used in writing and computing
The password requires special characters such as @, #, or $.
A senha requer traços especiais como @, # ou $.
2. Distinctive or notable features, characteristics, or marks that set something apart
The artist focused on the special features of the portrait.
O artista focou nos traços especiais do retrato.