Definitions for yeahyɛə, yæ
Random House Webster's College Dictionary
yeah*yɛə, yæ(adv.; n.; interj.)
Origin of yeah:
1900–05; var. of yea or yes
not only so, but
"I therein do rejoice, yea, and will rejoice"
Kernerman English Learner's Dictionary
"Do you want to come?" "Yeah."
Expressing joy, celebration, glee, etc.
Yeah! We did it!