Is analysis countable noun or uncountable noun?

"Analysis" can be both a countable and an uncountable noun, depending on the context.

Uncountable:

* When referring to the process of analyzing something: "This research requires careful analysis."

* When referring to the general concept of analysis: "Analysis is a key skill in many fields."

Countable:

* When referring to a specific instance or type of analysis: "The team conducted three analyses of the data."

* When referring to a particular study or breakdown: "The report contains a financial analysis of the company's performance."

Here's a simple way to remember:

* Uncountable: Think of "analysis" as a general idea or process.

* Countable: Think of "analysis" as a specific instance or type of breakdown.