'विहस्य' इति पदस्य समानार्थकं लिखत-
English: हसित्वा is correct synonym paryaya, same meaning word as per Sanskrit vocabulary and Amarakosha. Hindi: हसित्वा सही पर्यायवाची है जो समान अर्थ देता है और संस्कृत शब्दकोश में आता है।
Ref: NCERT Sanskrit Class IX Paryayavachi Shabda chapter explains synonyms paryaya meaning examples usage for vocabulary development clearly.