Yes, ground is playable
...and is worth 11 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Ground" Definition
noun
A surrounding area; a background.
An area of land designated for a particular purpose. Often used in the plural: a burial ground; parade grounds.
An area of reference or discussion; a subject: The professor covered new ground in every lecture.
An area or a position that is contested in or as if in battle: The soldiers held their ground against the enemy. Character witnesses helped the defendant stand her ground in the trial.
Electricity A conducting object, such as a wire, that is connected to such a position of zero potential.
verb-transitive
Baseball To hit (a ball) onto the ground.
Electricity To connect (an electric circuit) to a ground.
Football To throw (a ball) to the ground in order to stop play and avoid being tackled behind the line of scrimmage.
Informal To restrict (someone) especially to a certain place as a punishment.
Nautical To run (a vessel) aground.
verb-intransitive
Baseball To hit a ground ball: grounded to the second baseman.
To touch or reach the ground.
idiom
Drive To belabor (an issue or a subject).
From the ground up From the most basic level to the highest level; completely: designed the house from the ground up; learned the family business from the ground up.
Off the ground Under way, as if in flight: Because of legal difficulties, the construction project never got off the ground.
On the ground At a place that is exciting, interesting, or important.
To ground Into a den or burrow: a fox going to ground.
phrasal-verb
Ground out Baseball To be put out by hitting a ground ball that is fielded and thrown to first base.
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