Definition of majority | Dictionary.com
The terminology seems rather inconsistent & evolving.
Excerpted (underlining added)...
the greater part or number; the number larger than half the total (opposed to minority):the majority of the population.
a number of voters or votes, jurors, or others in agreement, constituting more than half of the total number.
the amount by which the greater number, as of votes, surpasses the remainder (distinguished from
plurality).
the party or faction with the majority vote:The Democratic Party is the majority.
the state or time of being of full legal age:to attain one's majority.
the military rank or office of a
major.
SYNONYM STUDY FOR MAJORITY
3. Majority, plurality, in the context of an election, poll, or other voting situation resulting in a statistically based statement, both denote an amount or number larger than some other. In situations in which only two candidates, options, or positions are concerned, the terms are interchangeable, though majority is by far the more commonly used: She beat her opponent by a large majority. The proposal received a large plurality of “Yes” votes. When three or more choices are available, however, a distinction is made between majority and plurality. A majority, then, consists of more than one-half of all the votes cast, while a plurality is merely the number of votes one candidate receives in excess of the votes for the candidate with the next largest number. Thus, in an election in which three candidates receive respectively 500, 300, and 200 votes, the first candidate has a plurality of 200 votes, but not a majority of all the votes cast. If the three candidates receive 600, 300, and 100 votes, the first has a majority of 100 votes (that is 100 votes more than one-half the total of 1000 cast) and a plurality of 300 votes over the nearest opponent.
But over here....
majority - definition and meaning
Excerpted (underlining added)...
The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The greater number or part; a number more than half of the total.
- noun The amount by which the greater number of votes cast, as in an election, exceeds the total number of remaining votes.
- noun The political party, group, or faction having the most power by virtue of its larger representation or electoral strength.
- noun Law The age at which a person is recognized as an adult by the law.
- noun The military rank, commission, or office of a major.
from The Century Dictionary.
- noun The state of being major or greater; superiority; preponderance.
- noun The greater number; more than half the whole number: as, a majority of mankind; a majority of votes. See plurality.
- noun The excess of one of two groups of things which have been enumerated over the other: as, the measure was carried by a majority of twenty votes; his majority was two to one.
- noun Full age; the age at which the laws of a country permit a young person to manage his own affairs and to exercise the rights of citizenship—in most countries twenty-one years.
- noun The office, rank, or commission of a major.
- noun [L. majores.] Ancestors; ancestry.
from the GNU version of the Collaborative International Dictionary of English.
- noun The quality or condition of being major or greater; superiority.
- noun The military rank of a major.
- noun The condition of being of full age, or authorized by law to manage one's own affairs.
- noun The greater number; more than half
- noun obsolete Ancestors; ancestry.
- noun The amount or number by which one aggregate exceeds all other aggregates with which it is contrasted; especially, the number by which the votes for a successful candidate exceed those for all other candidates. See Plurality.
- noun to die.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun More than half (50%) of some group
- noun The difference between the winning vote and the rest of the votes
- noun dated Legal adulthood
- noun UK The office held by a member of the armed forces in the rank of major
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the property resulting from being or relating to the greater in number of two parts; the main part
- noun the age at which persons are considered competent to manage their own affairs
- noun (elections) more than half of the votes