clutter - definition and synonyms

verb [transitive] [often passive] 

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/ˈklʌtə(r)/
present tense
I/you/we/theyclutter
he/she/itclutters
present participlecluttering
past tensecluttered
past participlecluttered

or clutter up 

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  1. to put too many things in a place so that it looks untidy

    His bedroom was cluttered with books and papers.

    1. a.
      to put too many facts, pictures etc in something so that it becomes hard to understand