Is Synapse part of Azure?

Excuse me, could you please clarify for me if Synapse is indeed a component or a service that falls under the umbrella of Azure? I've been trying to understand the relationship between the two, and I'm a bit unsure if Synapse is a standalone platform or if it's tightly integrated within Azure's ecosystem. Your expertise in this field would be invaluable in shedding some light on this matter. Thank you in advance for your help.