Can I set reserved words not to be searched

Elastic Stack Elasticsearch
1

HI,

I'm replacing Index Server with Elasticsearch. In Index server there are mechanisms in place such that certain words are ignored under certain search conditions as an example:

In Index Server if I search using 'as' nothing will be returned, but if I search for 'ash' it will be returned. Similarly words like 'the', "and" and 'at' are all ignored. and how would i differentiate between 'IT' as in 'the IT department' and the word 'it' which Index server also seems to handle nicely.

2

Generally these "reserved words" are called "stop words." In elasticsearch, you can use the stop token filter

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