AMAB

abbreviation

ˈā-ˌmab 

ˌā-ˌem-ˌā-ˈbē

assigned male at birth

Transfeminine people are people who were assigned male at birth (AMAB) but identify more with a feminine identity.

—Healthline.com

Any AMAB people who identify with femininity, however, might use the term "transfeminine."

—Sian Ferguson