S1U1R1E1
4 points
SURE is validvalid
free from doubt [adj SURER, SUREST] : SURENESS [n]
certain [adj SURER, SUREST, SURELY] / to provide with sewers [v SURED, SURING, SURES]
free from doubt [adj SURER, SUREST] : SURENESS [n]
certain [adj SURER, SUREST, SURELY] / to provide with sewers [v SURED, SURING, SURES]