When you "dim" a light, you reduce the brightness coming from the bulb. Diminution (not actually related to "dim") is the lessening of something to a smaller size or lower status, as a diminution of your "superpowers" when you wake up from a dream.

Pronouncing diminution (dim-ih-NYOO-shun) only seems to get harder the more you repeat it, but memorizing the meaning and sounds with "diminish" and "ammunition" helps. If you take away the firepower in a battle, for example, you diminish the ammunition, causing a diminution of the army's power. A diminution is a decrease of size, time, or esteem. Does the word still sound funny? Let's try a diminution, or reduction, of the number of times we say it — starting now.

Definitions of diminution

n change toward something smaller or lower

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declension, decline in quality, deterioration, worsening
process of changing to an inferior state
diminution of swelling; the subsidence of anything swollen
ebb, ebbing, wane
a gradual decline (in size or strength or power or number)
a gradual decline of something
gradual decline in amount or activity
a sudden sharp drop or rapid decline
sinking spell
a temporary decline in health or value
decline from a standard level of performance or achievement
loss of hair; the result of removing hair
loss of excess weight (as by dieting); becoming slimmer
drop-off, falling off, falloff, slack, slump
a noticeable deterioration in performance or quality
Type of:
decrease, decrement
a process of becoming smaller or shorter

n the act of decreasing or reducing something

decrease, reduction, step-down
increase, step-up
the act of increasing something
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the act of reducing the amount or number
mitigation, moderation
the action of lessening in severity or intensity
the act of causing to become less
a reduction in quantity or rate
the reduction of something's value or worth
devitalisation, devitalization
the act of reducing the vitality of something
extenuation, mitigation, palliation
to act in such a way as to cause an offense to seem less serious
alleviation, easement, easing, relief
the act of reducing something unpleasant (as pain or annoyance)
(war) a reduction in intensity (of a crisis or a war)
minimisation, minimization
the act of reducing something to the least possible amount or degree or position
the act of decreasing something markedly
act of decreasing in length
the act of becoming less
deduction, subtraction
the act of subtracting (removing a part from the whole)
the act of letting the air out of something
deduction, discount, price reduction
the act of reducing the selling price of merchandise
reducing prices back to some earlier level
the act of reducing the strength of something
a decrease in price or value
the act of decreasing (something) in size or volume or quantity or scope
reverse split, reverse stock split, split down
a decrease in the number of outstanding shares of a corporation without changing the shareholders' equity
amortisation, amortization
the reduction of the value of an asset by prorating its cost over a period of years
reduction or removal by the government of restrictions on a classified document or weapon
shelter, tax shelter
a way of organizing business to reduce the taxes it must pay on current earnings
tax credit
a direct reduction in tax liability (not dependent on the taxpayer's tax bracket)
budget cut
the act of reducing budgeted expenditures
pay cut, salary cut
the act of reducing a salary
cost cutting
the act of cutting costs
price cut, price cutting
cutting the price of merchandise to one lower than the usual or advertised price
spending cut
the act of reducing spending
tax cut
the act of reducing taxation
the act of gradually lowering the size or amount
service cutback
the act of reducing service
altering something (as a legislative act or a statement) in such a manner as to reduce its value
the relaxation or relief of muscle spasms
the easing of tensions or strained relations (especially between nations)
easing the severity of a pain or a disease without removing the cause
liberalisation, liberalization, relaxation
the act of making less strict
consumption, expenditure, using up
the act of consuming something
the act of exhausting something entirely
decompressing, decompression
relieving pressure (especially bringing a compressed person gradually back to atmospheric pressure)
shortening something by omitting parts of it
cut, cutting, cutting off
the act of shortening something by chopping off the ends
miniaturisation, miniaturization
act of making on a greatly reduced scale
a portion removed from the whole
the act of deducting from an employee's salary
the act of abating
wilt, wilting
causing to become limp or drooping
weakening (reducing the concentration) by the addition of water or a thinner
the act of weakening by stunting the growth or development of something
contraction, muscle contraction, muscular contraction
(physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
the act of cutting short
a gradual depletion of energy or resources
tax avoidance
the minimization of tax liability by lawful methods
Type of:
change of magnitude
the act of changing the amount or size of something

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

the statement of a theme in notes of greater duration (usually twice the length of the original)
Type of:
(music) the presentation of a musical theme

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