1. the quality or state of being gay; sexual orientation toward people of the same sex
Usage: modern usage, identity-related
2. the quality of being lighthearted, cheerful, or carefree
Usage: archaic or literary

Examples

• She spoke openly about her gayness in her memoir.
• The pride parade celebrates gayness and LGBTQ+ identity.
• The old poem captured the gayness of the spring festival.
• His gayness was an important part of his personal journey.
• The novel's characters expressed their gayness through art and music.