1. (Linguistics): Words in different languages that have a common ancestor and share a similar form and meaning. For example, "father" in English and "padre" in Spanish are cognates.
2. (Mathematics): A term used in the study of group theory, referring to a subgroup that is conjugate to another subgroup.
3. (Biology): A term sometimes used to describe related species or taxa, though it is not as common in English as in other languages.
Therefore, "cognatos" in English means "cognates".