Is “Postponement” a Scrabble word?
Yes
POSTPONEMENT
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 Postponement
noun
1.A delay, as a formal delay in a proceeding.
“The lawyer asked for a postponement in the trial so he could spend more time preparing before it began.”
Synonyms: cunctation, hold-up