billow - definition and synonyms

verb [intransitive] 

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/ˈbɪləʊ/
present tense
I/you/we/theybillow
he/she/itbillows
present participlebillowing
past tensebillowed
past participlebillowed
  1. 1
    to be filled with air and swell out like a sail
    billow out:

    His cloak billowed out behind him.

     Synonyms and related words