Is “Tournament” a Scrabble word?
Yes
TOURNAMENT
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 Tournament
/ˈtɔːnəmənt/
noun
1.During the Middle Ages, a series of battles and other contests designed to prepare knights for war.
2.A series of games; either the same game played many times, or a succession of games related by a single theme; played competitively to determine a single winning team or individual.
3.A digraph obtained by assigning a direction to each edge in an undirected complete graph.
Synonyms: tourney, tourney