From total +‎ -ity.

• (General American) IPA^(key): /toʊˈtælɪti/
• Rhymes: -ælɪti

• Audio (UK):

  (file)

totality (countable and uncountable, plural totalities)

1. The state of being total.
   • 2019 January 14, “Exploring the SCP Foundation: SCP-2935 - O, Death” (0:36 from the start), in The Exploring Series‎^[1], archived from the original on 25 March 2023:

     There are a number of SCPs and tales that look at potential apocalypses, but rarely with such totality as SCP-2935, a parallel dimension in which death prevailed.

2. An aggregate quantity obtained by addition.

   the totality of your offspring

3. (astronomy) The phase of an eclipse when it is total.

• (state of being total): entirety, totalness; see also Thesaurus:entirety

• Tolyatti