(transitive) To fit (a building or other place) with a mezzanine floor.

(idiomatic) Extremely fast, fast as lightning.

Lack of education; ignorance.

(transitive) To cause to blossom; to make flourish. / (transitive) To bestow a bloom upon; to make blooming or radiant. / (intransitive) Of a plant, to produce blooms; to open its blooms.