Meaning of 内揚 in Japanese

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Definition of 内揚

うち(uchi) 【内 ·中】

(n, adj-no) inside; within
while
among; amongst; between
(pn, adj-no) we (referring to one's in-group, i.e. company, etc.); our →Related words: 家
my spouse
(n) imperial palace grounds
emperor
(pn, adj-no) I (primarily used by women and children); me

ない(nai) 【内】

うちあげ(uchiage) 【内揚げ】

(n) inner pleat; the raising of fabric up in the middle to marry bottom edges of yukata and kimono