preoccupy - definition and synonyms

verb [transitive] 

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/priˈɒkjʊpaɪ/
present tense
I/you/we/theypreoccupy
he/she/itpreoccupies
present participlepreoccupying
past tensepreoccupied
past participlepreoccupied
  1. if something preoccupies you, you think about it a lot, or it uses a lot of your time