Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Extra" Definition
noun
A performer hired to play a minor part, as in a crowd scene in a film.
Source: American Heritage Dictionary
A special edition of a newspaper.
Source: American Heritage Dictionary
An additional or alternate worker.
Source: American Heritage Dictionary
Something more than is usual or necessary.
Source: American Heritage Dictionary
Something of exceptional quality.
Source: American Heritage Dictionary
adjective
Better than ordinary; superior: extra fineness.
Source: American Heritage Dictionary
More than or beyond what is usual, normal, expected, or necessary. See Synonyms at superfluous.
Source: American Heritage Dictionary
Subject to an additional charge: Coffee does not come with dinner but is extra.
Source: American Heritage Dictionary
More than is due, usual, or necessary .
Source: Merriam-Webster
Subject to an additional charge .
Source: Merriam-Webster
adverb
To an exceptional extent or degree; unusually: extra dry.
Source: American Heritage Dictionary
Beyond the usual size, extent, or degree .
Source: Merriam-Webster