richness

Inherited from Middle English richenesse; by surface analysis, rich +‎ ness.

• IPA^(key): /ˈɹɪt͡ʃnəs/

• Audio (Southern England):

  (file)

richness (usually uncountable, plural richnesses)

1. (uncountable) The state or quality of being rich; wealthiness, wealth, riches.
2. (uncountable) The state of having many examples or cases; abundance; profusion.
   • 2012, James Lambert, “Beyond Hobson-Jobson: A new lexicography for Indian English”, in World Englishes‎^[1], page 297:

     By using the same classification system for all the dictionaries surveyed, it was possible to compare the lexical richness of each against the other.

3. (ecology) The number of types in a community.
4. (countable) The result or product of being rich.

• enrichment

• (ecology): biodiversity