Question

what is meant by coordination

Answer 1

the act of making all the people involved in a plan or activity work together in an organized way:
or
The purpose of organising, division of work, departmentation, span of management, centralisation and decentralisation, delegation of authority and organisation structure is to optimally achieve the organisational goals. This is possible if departments of the organisation are co-ordinated in a unified direction.

Answer 2

The ability to choose different parts together smoothly