Expertise vs. Expertize

Expertisenoun

Great skill or knowledge in a particular field or hobby.

‘The scientist has expertise in the field of nuclear fusion.’;

Expertizeverb

(intransitive) To act as an expert.

Expertisenoun

Advice, or opinion, of an expert.

Expertizeverb

(transitive) To give an expert opinion on; to assess.

Expertisenoun

skillfulness by virtue of possessing special knowledge

Expertizeverb

give an expert opinion on something

‘a certificate from an expertizing committee’;

Expertisenoun

expert skill or knowledge in a particular field

‘technical expertise’;