Redshift
In plain terms
Amazon's cloud data warehouse for analytics.
Going deeper
Amazon Redshift stores and analyzes large datasets using columnar storage and parallel processing for fast SQL analytics. It's AWS's managed warehouse.
Under the hood
MPP (massively parallel processing) and columnar layout speed aggregations; integrates with the AWS data ecosystem.
Examples
BI, analytics, reporting, ETL pipelines, AWS data lakes.
Think of it like...
Like a warehouse arranged by column so you can total any metric across millions of rows fast.