IPA: /ˈmiːnɪŋfəl.nəs/
KK: /ˈminɪŋfəlnəs/
The quality or state of having significance or purpose.
The meaningfulness of her work inspired her to continue despite the challenges.
Meaningfulness → It is formed from "meaning" (from Old English "mænan", meaning to signify or intend) and "-ful" (meaning full of) and "-ness" (meaning the state of being). The word "meaningfulness" refers to the state of being full of meaning or significance.
Think of 'meaning' as signifying something important, and when you add '-ful' and '-ness', it describes a state that is rich in significance.