airhole

Noun

 * 1) A hole provided for ventilation or breathing.
 * 2) A hole in ice through which air escapes.
 * 3)  An air pocket.
 * 1) A hole in ice through which air escapes.
 * 2)  An air pocket.
 * 1)  An air pocket.
 * 1)  An air pocket.
 * 1)  An air pocket.