noun, masculine/a.fʁɑ̃.ʃis.mɑ̃/plural: affranchissements
affranchissement is masculine in French.
manumission (release from slavery or other legally sanctioned servitude; the giving of freedom); franking, metering
“Near-synonym: émancipation”
Synonyms: manumission, émancipation
From affranchir (“to emancipate; to frank”) + -ment.