Real Dictionary

flame
countable noun: A flame is an email message which severely criticizes or attacks someone.
variable noun: A flame is a hot bright stream of burning gas that comes from something that is burning.

flame in American English
the burning gas or vapor of a fire, seen as a flickering light of various colors; blaze
intransitive verb: to burn with a flame or flames; burst into flames; blaze
noun: burning gas or vapor, as from wood or coal, that is undergoing combustion; a portion of ignited gas or vapor
transitive verb: to subject to the action of flame or fire

flame in British English
noun: a hot usually luminous body of burning gas often containing small incandescent particles, typically emanating in flickering streams from burning material or produced by a jet of ignited gas
verb: to burn or cause to burn brightly; give off or cause to give off flame

flame in Chemical Engineering
noun: A flame is the hot thing you can see when combustion takes place.