偽ぎ装そう結けっ婚こん

ぎ

そ

う

け

っ

こ

ん

Meanings

1

noun

sham marriage; fake marriage

A marriage entered into for some ulterior purpose, such as immigration benefits, rather than for a genuine marital relationship.

falsehood, lie, deceive

装attire, dress, pretend

結tie, bind, contract

婚marriage

偽ぎ装そう
偽装 means 'disguise' or 'camouflage' in general; 偽装結婚 specifically refers to a marriage that is disguised as genuine.
結けっ婚こん
結婚 is a neutral term for 'marriage'; 偽装結婚 adds the nuance of falsity or pretense.

Compound of 偽装 (ぎそう, 'disguise, camouflage') and 結婚 (けっこん, 'marriage').