Missionnaire translates to "missionary". It's an interesting word choice in a rap song, as it typically refers to someone sent on a religious mission.
In this context, Ateyaba uses it to declare his own purpose and influence, suggesting he has a divine calling to spread his message or impact the world in his own way. This unexpected use gives the word a unique and powerful meaning within the song.
"SOLER" is Ateyaba flexing at full volume. Every bar stacks a fresh brag: designer sneakers, stacks of cash, a Grammy he says he's owed, and women who supposedly panic when he walks into the room.
The title plays on the French slang sense of "soler," to shine or show off, and the song backs that up with rapid-fire comparisons to Kanye, Alexa, and GameStop, mixing pop culture and street bravado into one confident brag.
Underneath the swagger there's a thread of self-mythologizing too. He calls himself a "missionary" sent by God and "your dictionary," framing his rap skill as something almost preordained. The song closes out in English, with a defiant hook that refuses to back down from anyone doubting him.