expertiseex·per·tise /ˌekspɜːˈtiːz-ɜːr-/ noun [uncountableU]JOB special skills or knowledge in an area of work or studythe broker’s international tax and accounting expertise
An independent financial adviser’s area of expertise includes products such as pension plans and insurance policies.
expertise inRenault’s expertise in corrosion protection is confirmed by the new eight-year anti-corrosion warranty covering all models of the Clio.