What is the difference in meaning between that two phrases? Example:

A change request is a document containing a call for an adjustment of a system; it is of great importance in the change management process. wiki

Example 2:

Exclusive: IAEA chief: Nuclear summit has great importance cctv

  • There's little difference between them.
    – Andrew
    Mar 15, 2017 at 20:43

2 Answers 2


As others have written, there is little or no difference in meaning. However, there may be a nuance. "Be" means to possess intrinsically. "Have great importance" could imply a qualifier, have great importance to a specific set of people but perhaps not others, more a sense of importance in the eyes of the beholder than an intrinsic quality.


Definition of 'be of' in English:


Possess intrinsically

To be of something is the same thing as to have something.

  • But to “have something” is not the same as to be of something. “He has problems” is not the same as “he is of problems”, which is nonsensical. Sep 1, 2019 at 12:43

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