What does "organizer" mean?

1. (a person who plans events) a person who plans and manages the details of an event or a group. 2. (a tool for planning) a notebook, app, or small computer used to keep track of your schedule and notes. 3. (a storage container) a box or case with different sections to keep small items tidy. 4. (biological cells) a group of cells in a developing baby that tells other cells what to do.

organizer

US //ˈɔɹɡəˌnaɪzɝ// or·ga·niz·er

1 a person who plans events (n.)
B1 Intermediate

a person who plans and manages the details of an event or a group.

an individual responsible for the coordination and logistical management of public events, meetings, or social movements.

Example

The lead organizer of the festival made sure every band arrived on time.

Example

As the primary organizer of the international conference, she had to balance the needs of three hundred delegates with a very tight budget.
2 a tool for planning (n.)
B1 Intermediate Computing

a notebook, app, or small computer used to keep track of your schedule and notes.

a physical notebook or digital device designed to facilitate personal time management and information storage.

Example

I wrote the appointment in my organizer so I wouldn't forget it.

Example

Before smartphones became ubiquitous, many professionals relied on a physical leather-bound organizer to track their daily appointments and contacts.

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3 a storage container (n.)
B2 Upper Intermediate

a box or case with different sections to keep small items tidy.

a container or receptacle, often divided into compartments, used for the systematic storage of small objects.

Example

She bought a plastic organizer to keep her desk drawers neat.

Example

The technician used a modular organizer to ensure that the various sizes of screws and bolts remained separated during the repair process.
4 biological cells (n.)
C2 Proficiency Technical Science

a group of cells in a developing baby that tells other cells what to do.

a region of an embryo that directs the development and differentiation of surrounding tissues.

Example

Scientists studied the organizer in the embryo to see how the spine forms.

Example

The discovery of the embryonic organizer provided a fundamental insight into how specific cell groups signal the structural layout of a developing organism.
- inductor

Origin

From organize + -er.