Is “Quizzing” a Scrabble word?
Yes
QUIZZING
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 Quizzing
verb
1.To hoax; to chaff or mock with pretended seriousness of discourse; to make sport of, as by obscure questions.
2.To peer at; to eye suspiciously or mockingly.
3.To question closely, to interrogate.
noun
1.The act by which somebody is quizzed, or teased; banter, railery.
2.The asking of questions; interrogation.