Type - (or group) -  one of multiple divisions of a classification property. Classifications can also be subdivided into subclassification types, so that, a description can be both a type and a classification.  For other aspects see property overview.

• For example, organic or inorganic are classifications of an object. Animal, plant, microorganism etc are types of organic objects. Trees, vines etc. are types of plants. Ash, oak, and poplar etc. are types of trees (which makes tree a classification here). 
• Usage: 'The tree(classification) is oak (type)', but also 'The plant (classification) is a tree (type)'. 

• Machine tools can be classified according to the arrangement of their carriages. An XYFZ type machine has a structural loop that goes from the X carriage (table) to the Y carriage (saddle) to the frame to the Z carriage (with spindle and tool). But all XYFZ machines are not completely alike. The carriages could have differing bearing surfaces (contact, roller bearing , air bearing,  fluid bearing etc,).