Is “Overgrow” a Scrabble word?
Yes
OVERGROW
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Overgrow
verb
1.To grow beyond one's boundaries or containment, or beyond the proper size.
2.To grow over; (of one thing) to cause (a second thing) to become overgrown (with or by the first thing).