Learn how to say Classifications correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word classification:
systematic placement in categories
one of the divisions in a system of classifying
the placing of animals and plants in a series of increasingly specialized groups because of similarities in structure, origin, molecular composition, etc, that indicate a common relationship. The major groups are domain or superkingdom, kingdom, phylum (in animals) or division (in plants), class, order, family, genus, and species
the study of the principles and practice of this process; taxonomy
(government) the designation of an item of information as being secret and not available to people outside a restricted group
C18: from French; see class, -ify, -ation