cave - definition and synonyms

verb 

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/keɪv/
present tense
I/you/we/theycave
he/she/itcaves
present participlecaving
past tensecaved
past participlecaved

phrasal verb

cave in

[intransitive]
present tense
I/you/we/theycave in
he/she/itcaves in
present participlecaving in
past tensecaved in
past participlecaved in
  1. 1
    if a roof or wall caves in, it falls down or inwards

    I heard a huge bang and thought the whole house was going to cave in.