Correct

假充

/ jiǎchōng / 
Strokes

Definition

to pose as sb/to act a part/imposture

Example

As a Verb

pretend to be; pose as

1
Jiǎ
假
chōng
充
zhèngjīng
正经

pretend to be a respectable person

2
Jiǎ
假
chōng
充
yīngxióng
英雄

pose as a hero

3
Jiǎ
假
chōng
充
nèiháng
内行

pretend to be an expert

4
Jiǎ
假
chōng
充
gǔbì
古币
zhuānjiā
专家

pose as an expert in old coins