うそをつく (translations)→ flam storytelling
うそをつくこと (translations)→ falsehood
偽り (translations)→ deceit dissimulation forgery pretense
偽りの (translations)→ pretending professed synthetic
根も葉もない (translations)→ baseless false groundless impossible purely
寝床 (translations)→ bed couch cover pallet sack
