hollow Meaning, definition in Cambridge English Dictionary
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Meaning of "hollow" - English Dictionary

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hollowadjective

uk   /ˈhɒl.əʊ/  us   /ˈhɑː.loʊ/

hollow adjective (EMPTY)

C2 having a hole or empty space inside: a hollow tube Hollow blocks are used because they are lighter. a hollow loghollow cheeks/eyes If you have hollow cheeks or eyes, your cheeks curve in or your eyes look deep in your head because you are old, tired, or ill.
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hollow adjective (NOT SINCERE)

C2 (of situations, feelings, or words) without value, or not true or sincere: It was something of a hollow victory - she won the case but lost all her savings in legal fees. Even sex had become a hollow pleasure. Will their good intentions become realities or are they just hollow promises?

hollow adjective (SOUND)

(of sound) as if made by hitting an empty container: a hollow sound This tree trunk sounds hollow.
hollowness
noun [U] uk   us   /-nəs/
the hollowness of fame/success

hollownoun [C]

uk   /ˈhɒl.əʊ/  us   /ˈhɑː.loʊ/
a hole or empty space in something, or a low area in a surface: The dog found a hollow in the ground to hide in from the wind. US a valley: We used to go for long walks in the hollow. Sleepy Hollow
(Definition of hollow from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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