help pairing columns

Greetings to all, Im am new here and quite new to excel, Im hoping someone can help with a problem im having,
and many thanks in advance for any help i may receive . Let me please try explain
I have 2 columns in spreadsheet. A+B and each column has a list of product categories and list 2 also has a set of category items, but i need to see if there is any matched categories in column B the same or simuler to column A and then pair them up, sorry if i am a little confusing, thanks again for any help, mark

Maybe you have small sample excel workbook? explain the desired result too, and try to upload it at the forum.

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