What is the meaning of Marron?

A sweet chestnut.

Cherax tenuimanus, a species of freshwater crayfish from Western Australia.

Maroon (a member of ethnic groups in the Americas descended from Africans who escaped slavery and established free communities; a member of a major Afro-Surinamese ethnic group that consists of several tribes and is based mostly in the hinterland; escaped slave)

genitive singular of marto

stupid

idiot

horse-chestnut

chestnut

chestnut brown

A token used as a control of the presence of someone at his post

firecracker (on a rocket)

punch (with the fist)

head

brown

feral, maroon (that has become wild again (used of a slave or animal who has returned to a free or wild state))

wild (to qualify a wild alternative for a cultivated plant or domestic animal)

illicit, crooked (of professions)

maroon (a slave or animal who has run away to live free)

Source: wiktionary.org