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Technical Vocabularynoun|verb · /pɔːrt/

port

In simple English

In networking, a port is a numbered access point that allows communication between computers. Each service running on a computer listens on a specific port number (like 8080 for web servers or 5432 for databases). Think of it like an apartment number for network traffic. In software development, porting means taking code written for one operating system or device and modifying it so it works on another. For example, porting an iOS app to Android means rewriting parts of the code to work with Android systems. Both meanings are common in tech conversations, so context matters.

What are ports and port numbers in networking and software development?

At a glanceCEFR B2
Commonness4/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK
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Say it like this

✓We need to expose port 8080
✓Let me check what is listening on that port
✓We are porting the application to Windows

Real examples

in a standup

"We encountered a conflict on port 5000, so I changed the configuration to use port 5001 instead."

in a code review

"This code was ported from the legacy system, so we should review it carefully for compatibility issues."

in a team meeting

"Our goal is to port the mobile app to the web platform by the end of Q3."

Don't say this

Handle with care. Confusing the networking sense (port number) with the adaptation sense (porting code). Also, people sometimes say port when they mean deploy or release.

✕We are going to port the server to production.
✓We are going to deploy the server to production.— Port means adapting software to a different system, not moving it to production. Deploy is the correct term.
✕Can you port this connection on port 443?
✓Can you route this connection through port 443?— Port (noun) is the endpoint number. Port (verb) is for adapting code. Use route or configure for network connections.
✕We need to port our database to a new server.
✓We need to migrate our database to a new server.— Migrate is more accurate for moving data. Port is more specific to adapting software code.

Other forms

noun

port

"The application listens on port 3000."

verb

port

"We will port the Python library to JavaScript next sprint."

verb (past tense)

ported

"The team ported the code to Linux in just two weeks."

noun (gerund)

porting

"Porting to a new platform requires careful testing."

Often used with

port numberThe specific numeric identifier for a port (e.g., 8080, 443, 3306)
open a portTo make a port available for communication or listening
close a portTo disable or block access to a port
listen on a portWhen a service waits for incoming connections on a specific port
port forwardingRedirecting network traffic from one port to another
port conflictWhen two services try to use the same port simultaneously
port the codeTo adapt or convert code for a different platform or system

Similar words

endpointMore general term for a communication point, but not always interchangeable with port
adapt (for verb sense)More general word meaning to modify, less specific than port
migrate (for verb sense)Used more for moving data or systems, not specifically for code adaptation

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Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. Your team needs to move a Rails app to run on a Windows server. How do you say it?

Complete the sentence

2. The web server is currently listening on _______ 8080. (use: port)

Spot the mistake

3. Which sentence uses port incorrectly?

Rewrite naturally

4. Rewrite using port correctly: We want to take the existing software and make it work on a different operating system.

Questions

Quick poll

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

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