The word for singer in French is chantre if you are referring specifically to a person who sings in a church setting, or chanteur for a male singer and chanteuse for a female singer.
Understanding the gendered nouns in French is crucial. In this case, chanteur is masculine while chanteuse is feminine. Therefore, if you are talking about a male singer, you would say Il est chanteur (He is a singer), and for a female singer, you would say Elle est chanteuse (She is a singer).
Language learning can be nuanced, especially with gendered nouns, but with practice, it becomes easier to navigate these differences.