pink triangle
badge used in Nazi concentration camps to identify homosexual men and transgender women prisoners, later revived in the 1970s as a symbol of protest against homophobia and adopted as a symbol of LGBTQ pride and queer liberation
en-US/ˈpɪŋk ˈtɹaɪˌæŋɡəl/
en-GB/ˈpɪŋk ˈtɹaɪæŋɡəl/