The state or quality of being gelid.

The act of entering. / Permission to enter. / A door or other means of entering. / (astronomy) The entrance of the Moon into the shadow of the Earth in eclipses, or the Sun's entrance into a sign, ...

(slang) A conscientious objector.

(mineralogy) A white mineral with triclinic crystals, NaCaB₅O₉·8H₂O.