Longman Dictionary of Contemporary English
overall majority
noun
EXAMPLES FROM CORPUS
▪ Before hearing the poll results, Mr Major and Mr Kinnock voiced their confidence that they would win with an overall majority.
▪ If Labour took all 42, it would still be 13 seats short of an overall majority.
▪ Ladbrokes are offering 55-1 against Party Politics winning today and Labour having an overall majority in the election.
▪ More than double, 65 percent, would prefer the Tories or Labour to have an overall majority.
▪ The Conservatives won 330 seats, against 287 for Labour, and an overall majority of 30.
▪ The government was elected in October 1974 with an overall majority of three.
▪ The Tories therefore would fall 12 seats short of an overall majority.
▪ To have an overall majority a party needs to win 326 seats.
Usage examples of "overall majority".
Chances are, with an iridependent Wales they'll lose their overall majority at the next general election.