Hello everyone, nice to welcome you on our site, this page even has Level 15 answers. I enjoy it =D
Level 15 - TSTINOA
The answer to this puzzle is:
Words: TAINTS, TITANS, TANIST, TATSOI, STATIN, STOTIN, TAINS, STOAT, OSTIA, SANTO, TINTS, TANTO, STINT, ANTIS, STOAI, IOTAS, TOITS, AITS, NITS, TANS, TAIN, TITS, SAIN, AINS, SNIT, OAST, TOIT, IOTA, TATS, ANIS, NOTA, ANTS, TOTS, TONS, IONS, STAT, TINT, OATS, INTO, TINS, TAN, ANT, ITS, SIN, SAT, TON, ION, TOT, OAT, TIN, ANI, SOT, NIT, ATT, NOS, TAT, TIT, INS
Bonus words:
TAINTS, TITANS, TANIST, TATSOI, STATIN, STOTIN, TAINS, STOAT, OSTIA, SANTO, TINTS, TANTO, STINT, ANTIS, STOAI, IOTAS, TOITS, AITS, NITS, TANS, TAIN, TITS, SAIN, AINS, SNIT, OAST, TOIT, IOTA, TATS, ANIS, NOTA, ANTS, TOTS, TONS, IONS, STAT, TINT, OATS, INTO, TINS, TAN, ANT, ITS, SIN, SAT, TON, ION, TOT, OAT, TIN, ANI, SOT, NIT, ATT, NOS, TAT, TIT, INS