organizer

noun

1. a person who brings order and organization to an enterprise

   noun.person

   Examples

   She was the organizer of the meeting.

   Synonyms arranger organiser

   Source: WordNet 3.0

2. someone who enlists workers to join a union

   noun.person

   Synonyms labor organizer organiser

   Source: WordNet 3.0

3. a lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc.

   noun.artifact

   Synonyms organiser pda personal digital assistant personal organiser personal organizer

   Source: WordNet 3.0

4. One who organizes.

   noun

   Source: webster1913