say it: SPRED-ing
spreading is a noun meaning "process or result of distributing or extending over a wide expanse of space". It carries 3 recorded senses.
process or result of distributing or extending over a wide expanse of space
the opening of a subject to widespread discussion and debate
act of extending over a wider scope or expanse of space or time
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for spreading come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.