dim Definition in the Cambridge English Dictionary
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Definition of “dim” - English Dictionary

Definition of "dim" - American English Dictionary

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dimadjective [-er/-est only]

 us   /dɪm/ (-mm-)
not ​bright; not giving or having much ​light: A dim ​bulbprovides the only ​light in the ​hall. Something that is dim is also not ​clear in ​yourmind or ​memory or not ​likely to ​happen: I had only a dim ​memory of a ​tall, ​slender man.
dimly
adverb  us   /ˈdɪm·li/
a dimly ​lithallway

dimverb [I/T]

 us   /dɪm/ (-mm-)
to ​become or make something less ​bright: [I] In the ​middle of the ​storm, the ​lightssuddenly dimmed.
(Definition of dim from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "dim" - British English Dictionary

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dimadjective

uk   us   /dɪm/ (dimmer, dimmest)

dim adjective (NOT CLEAR)

C2 not giving or having much ​light: The ​lamp gave out a dim ​light. He ​sat in a dim ​corner of the ​waitingroom. We could ​see a dim (= not ​easilyseen)shape in the ​fog. literary If ​youreyes are dim, you cannot ​see very well.a dim memory, recollection, etc. C2 something that you ​rememberslightly, but not very well: I had a dim ​recollection of having ​met her before.

dim adjective (NOT CLEVER)

informal not very ​clever: He's a ​niceguy, but a little dim.UK Don't be so dim!

dim adjective (NOT POSITIVE)

not ​likely to ​succeed: The company's ​prospects for the ​future are ​rather dim.
dimly
adverb uk   us   /ˈdɪm.li/
The ​room was dimly ​lit. I dimly ​rememberedreading the ​book a few ​years before.
dimness
noun [U] uk   us   /ˈdɪm.nəs/

dimverb [I or T]

uk   us   /dɪm/ (-mm-)
C2 to (make something) ​become less ​bright: Someone dimmed the ​lights. The ​lights dimmed and the ​curtainsopened. literary to (make a ​positivefeeling or ​quality) ​become less ​strong: Our ​hopes/​expectations dimmed as the ​hourspassed.
(Definition of dim from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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