In the context of software or systems what is meant by ilookup feature?

First of all, for your kind information the “illokup” is used in various contexts, so there are various meanings of it in different contexts. In software and systems, it is typically used for retrieving the data within a structured environment. Therefore it is mainly used in databases, programming languages, and applications. These are the fields that are known for quick and different data retrieval. 

The role and features of illokup also get changed when the requirements are changed based on the system and software. Therefore, it has the capability to be tailored so that the developer can optimize it in various sub-fields. It also allows users to gain access to relevant inflation and data efficiently. Its role is to provide accurate information processing within the context of a given software and system or even application. It may perform tasks like searching, or references within a dataset or data structures. Therefore, it has many features which can assist you in retrieving data.