This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The act or process of diminishing; a lessening or reduction.

n. The resulting reduction; decrease.

n. Music Statement of a theme in notes of lesser duration, usually one-half, of the original.

n. A lessening, decrease or reduction.

n. The shortening of the notes of a melody or theme.

n. The act of diminishing, or of making or becoming less; state of being diminished; reduction in size, quantity, or degree; -- opposed to augmentation or increase.

n. The act of lessening dignity or consideration, or the state of being deprived of dignity; a lowering in estimation; degradation; abasement.

n. Omission, inaccuracy, or defect in a record.

n. In counterpoint, the imitation of, or reply to, a subject, in notes of half the length or value of those the subject itself.

n. The act of diminishing, lessening, or reducing; a making smaller; a lowering in amount, value, dignity, estimation, etc.: as, the diminution of wealth, of importance, of power.

n. The process of becoming less: as, the apparent diminution of a receding body; the diminution of the velocity of a projectile.

n. In music, the repetition or imitation of a subject or theme in notes having one half or one quarter the duration of those first used: a favorite device in contrapuntal composition. See canon, counterpoint, and imitation.

n. In law, an omission in the record of a case sent up from an inferior court to the court of review.

n. In heraldry, differencing, especially that kind of differencing called cadency.

n. In architecture, the gradual decrease in the diameter of the shaft of a column from the base to the capital.

n. the act of decreasing or reducing something

n. change toward something smaller or lower

n. the statement of a theme in notes of lesser duration (usually half the length of the original)

"I. iii.18 (165,3) till the diminution/Of space had pointed him sharp as my needle] _The diminution of space_, is _the diminution_ of which"

increase    enlargement   

statement   

figure of diminution    diminuendo   

abatement    deduction    reduction    decrease    decrement    decay    degradation    abasement    diminishment    lessening   

Aleutian    Andalusian    Confucian    Constitution    Lilliputian    Lucian    absolution    attribution    constitution    contribution   

decrease    alteration    decline    cessation    accession    deterioration    accumulation    mitigation    lower    abatement