Hello everyone, nice to welcome you on our site, this page even has Level 15 answers. I enjoy it =D
Level 15 - SRUOSEI
The answer to this puzzle is:
Words: SIEURS, OSIERS, ROUSES, ISSUER, SEROUS, SEISOR, RISUS, SIRES, SOURS, SORES, RUSES, SORUS, SUERS, OURIE, OSIER, SOUSE, SIEUR, ROUES, EROS, SIRS, ROES, ORES, SEIS, SIRE, OURS, RUES, RISE, USES, USER, SOUS, SOUR, REIS, SUES, RUSE, ROE, SIR, SOU, OUR, USE, SUE, ORE, RES, RUE, SIS, IRE, SER
Bonus words:
SIEURS, OSIERS, ROUSES, ISSUER, SEROUS, SEISOR, RISUS, SIRES, SOURS, SORES, RUSES, SORUS, SUERS, OURIE, OSIER, SOUSE, SIEUR, ROUES, EROS, SIRS, ROES, ORES, SEIS, SIRE, OURS, RUES, RISE, USES, USER, SOUS, SOUR, REIS, SUES, RUSE, ROE, SIR, SOU, OUR, USE, SUE, ORE, RES, RUE, SIS, IRE, SER