(RUBBISH) [noun] [U] - things that are considered to be of no use or value, or of low qualityWe ought to clear out this cupboard - it's full of junk.All he ever reads is junk (= books, magazines etc. of low quality).I can't get the children to eat anything except junk/junk food (= food that is unhealthy but is quick and easy to eat). Compare health food at health."Was there any mail today?" "No, just junk/junk mail (= post, usually advertising products or services, which is sent to people although they have not asked for it)."We furnished our house entirely from junk shops (= shops which sell old unwanted furniture, etc. at low prices).
JUNK
Meaning of JUNK in English
Cambridge English vocab. Кембриджский английский словарь. 2012