say it: vahy-uh-BIL-uh-tee
viability is a noun meaning "(of living things) capable of normal growth and development". It carries 2 recorded senses.
capable of being done in a practical and useful way
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 viability 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.