Next in order after the sixth;; coming after six others. [1913 Webster]
"On the seventh day, God ended his work which he had made; and he rested on the seventh day from all his work which he had made." [1913 Webster]

Constituting or being one of seven equal parts into which anything is divided; as, the seventh part. [1913 Webster]

Seventh day, the seventh day of the week; Saturday. -- Seventh-day Baptists. See under Baptist.

seventh, n.

One next in order after the sixth; one coming after six others. [1913 Webster]

The quotient of a unit divided by seven; one of seven equal parts into which anything is divided. [1913 Webster]

An interval embracing seven diatonic degrees of the scale. [1913 Webster]

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OXFORD DICTIONARY

seventh, n. & adj.
--n.
1 the position in a sequence corresponding to the number 7 in the sequence 1-7.
2 something occupying this position.
3 one of seven equal parts of a thing.
4 Mus. a an interval or chord spanning seven consecutive notes in the diatonic scale (e.g. C to B). b a note separated from another by this interval.
--adj. that is the seventh.

Idiom

in seventh heaven see HEAVEN. Seventh-Day Adventists a staunchly protestant branch of the Adventists with beliefs based rigidly on faith and the Scriptures and the imminent return of Christ to earth, and observing the sabbath on Saturday.

Derivative

seventhly adv.

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THESAURUS

seventh
consecutive intervals, degree, diapason, diatessaron, diatonic interval, diatonic semitone, enharmonic diesis, enharmonic interval, fifth, fourth, half step, halftone, heptadic, heptagonal, heptahedral, heptamerous, heptangular, interval, less semitone, melodic interval, note, octave, parallel octaves, second, semitone, septempartite, septenary, septimal, septuple, sevenfold, sixth, step, third, tone, unison interval, whole step

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ROGET THESAURUS

seventh

Five
N five, five, cinque, quint, quincux, six, half-a- dozen, half dozen, seven, eight, nine, three times three, dicker, ten, decade, eleven, twelve, dozen, thirteen, long dozen, baker's dozen, quintuplet, twenty, score, twenty-four, four and twenty, two dozen, twenty-five, five and twenty, quarter of a hundred, forty, two score, fifty, half a hundred, sixty, three score, seventy, three score and ten, eighty, four score, ninety, fourscore and ten, sestiad, hundred, centenary, hecatomb, century, hundredweight, cwt, one hundred and forty-four, gross, thousand, chiliad, millennium, thousand years, grand, myriad, ten thousand, ban, man, ten thousand years, banzai, lac, one hundred thousand, plum, million, thousand million, milliard, billion, trillion, five, quinary, quintuple, fifth, senary, sextuple, sixth, seventh, septuple, octuple, eighth, ninefold, ninth, tenfold, decimal, denary, decuple, tenth, eleventh, duodenary, duodenal, twelfth, in one's 'teens, thirteenth, vicesimal, vigesimal, twentieth, twenty-fourth, vicenary, vicennial, centuple, centuplicate, centennial, centenary, centurial, secular, hundredth, thousandth.

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