siffleu-r, n.m., -se, n.f., whistler, hisser, singer.
siffleur, n.m., (orni.) wood-wren; piping bull-finch.
siffleu-r, -se, adj., whistling, piping (of birds); that wheezes (of horses). n.m., un —; (of horses) a roarer.
sigillé, -e (-jil-lé), adj., sigillated. Terre —e; bole.
sigisbée, n.m., cicisbeo, lover.
sigisbéisme, n.m., cicisbeism.
sigmoïde, adj., (anat.) sigmoid, sigmoidal.
*signal, n.m., signal; word.
*signalé, -e, adj., signalized; signal; remarkable, conspicuous.
*signalement, n.m., description (of a man).