noth·ing·ness 
/ˈnʌθɪŋnəs/ noun
/ˈnʌθɪŋnəs/ noun [noncount] 1 : empty space
▪ He was staring into nothingness. 2 : the state of being no longer seen, heard, or felt : nonexistence
▪ The sound faded into nothingness. ▪ philosophers who feel that when we die, we pass into nothingness [=we no longer exist]
▪ He was staring into nothingness.
▪ The sound faded into nothingness. ▪ philosophers who feel that when we die, we pass into nothingness [=we no longer exist]
