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Technical Vocabularyabbreviation · /ˌviː piː ˈsiː/

VPC

In simple English

In the tech industry, VPC is almost exclusively associated with Amazon Web Services (AWS), though other cloud providers offer similar concepts. A VPC functions like your own private data center in the cloud—you define the network topology, create subnets across availability zones, set up routing tables, and control inbound and outbound traffic using security groups and network ACLs. When you launch EC2 instances, databases, or other AWS resources, they typically run inside a VPC. Understanding VPC architecture is essential for DevOps engineers, cloud architects, and backend developers because proper VPC design directly impacts security, scalability, and performance. In real workplace conversations, engineers discuss VPC configuration, VPC peering (connecting multiple VPCs), and VPC isolation strategies during architecture planning and infrastructure reviews.

What is a VPC and how do I set one up on AWS?

At a glanceCEFR C1
Commonness5/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK
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Say it like this

✓We should launch the database in a separate VPC for isolation.
✓Let us configure VPC peering between the production and staging environments.
✓This VPC is running out of available IP addresses—we need to plan an expansion.

Real examples

in a standup

"I finished provisioning the new VPC yesterday, so the team can start deploying to it today."

in a code review

"Make sure the database endpoint is only accessible from within the VPC using a security group rule."

in a team meeting

"Our disaster recovery strategy relies on VPC failover to a secondary region within minutes."

Don't say this

Handle with care. VPC is a specific AWS service; do not use it generically for other cloud providers. Some engineers confuse VPC configuration with security group configuration—they are related but distinct.

✕We use VPC for all our cloud infrastructure.
✓We use AWS VPC for all our cloud infrastructure.— VPC is AWS-specific; other clouds use different terminology. Specify the provider for clarity.
✕The VPC will protect us from all attacks.
✓The VPC provides network isolation; we also need security groups and NACLs to protect against attacks.— VPC alone does not guarantee security—it must be configured correctly with additional security controls.
✕We cannot add more instances because the VPC is full.
✓We cannot add more instances because the VPC subnet has exhausted its IP address range.— A VPC itself does not fill up; subnets can run out of available IPs. Be precise about the constraint.

Other forms

noun

VPC

"The VPC spans three availability zones for high availability."

noun

VPCs

"We manage multiple VPCs across different AWS accounts and regions."

noun

VPC

"VPC configuration is one of the first steps in setting up AWS infrastructure."

Often used with

VPC subnetA logical subdivision of a VPC; always used together when discussing network design.
VPC peeringThe practice of connecting two VPCs; commonly discussed in multi-account architectures.
VPC endpointA private connection to AWS services without using the internet; essential for security.
VPC CIDR blockThe IP address range allocated to the VPC; must be defined during creation.
default VPCThe VPC automatically created for new AWS accounts; commonly deleted and replaced.

Similar words

private cloud networkA generic term; VPC is AWS-specific.
virtual networkA broader term; VPC is more specific to AWS cloud infrastructure.
cloud private networkA generic description; VPC is the AWS product name.

Opposites

public internetshared cloud infrastructure

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Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. Your team is designing a new application. How do you naturally suggest isolation?

Complete the sentence

2. Before launching any resources, we must first create a _______ with the correct CIDR block.

Spot the mistake

3. Which sentence uses VPC incorrectly?

Rewrite naturally

4. Rewrite this in natural tech English: 'We need to make a separate network area in AWS where our database can be hidden from the internet.'

Questions

Quick poll

Have you said "vpc" in a standup this week?

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