Main Entry: va·cu·i·ty

Pronunciation: \va-ˈkyü-ə-tē, və-\

Function: noun

Inflected Form(s): plural va·cu·i·ties

Etymology: Middle English vacuite, Latin vacuitas, from vacuus empty

Date: 15th century

1 : an empty space
2 : the state, fact, or quality of being vacuous
3 : something (as an idea) that is vacuous or inane