Meaning of “organization” - Learner’s Dictionary

organization

noun ( also UK -isation) uk us /ˌɔːɡənaɪˈzeɪʃən/
GROUP [ C ]

B1 an official group of people who work together for the same purpose:

a charitable/voluntary organization
ARRANGEMENT [ U ]

the way that parts of something are arranged:

Better organization of the office would improve efficiency.
PLAN [ U ]

B1 the planning of an activity or event:

Who was responsible for the organization of the conference?
organizational adjective

organizational skills

(Definition of “organization” from the Cambridge Learner’s Dictionary © Cambridge University Press)