S1H4T1U1M3
10 points
SHTUM is validvalid
schtum [adj SHTUMMER, SHTUMMEST]
(Yiddish) silent, dumb, quiet, also SCHTOOM, SCHTUM, SHTOOM, SHTUMM, STUMM [adj]
schtum [adj SHTUMMER, SHTUMMEST]
(Yiddish) silent, dumb, quiet, also SCHTOOM, SCHTUM, SHTOOM, SHTUMM, STUMM [adj]