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English definition of “dim”

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dim

adjective [-er/-est only]  /dɪm/ (-mm-) us  
not bright; not giving or having much light: A dim bulb provides the only light in the hall. Something that is dim is also not clear in your mind or memory or not likely to happen: I had only a dim memory of a tall, slender man.
dimly
adverb  /ˈdɪm·li/ us  
a dimly lit hallway

dim

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