say it: LAHY-ning
lining is a noun meaning "a protective covering that protects an inside surface". It carries 4 recorded senses.
a protective covering that protects an inside surface
a piece of cloth that is used as the inside surface of a garment
providing something with a surface of a different material
the act of attaching an inside lining (to a garment or curtain etc.)
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 lining 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.