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Immigration: The process of examining your passport and other documents to make certain that you can be allowed to enter the country, or the place where this is done
Infidelity: (An act of) having sex with someone who is not your husband, wife or regular sexual partner, or (an example of) not being loyal or faithful
ISO 17025: An International Standard (published by the International Organization for Standardization) that specifies the general requirements for the competence to carry out tests and/or calibrations