NEW: English for Tech Bundle → Save 38%
Your progress…

Loading your progress…

Home
Technical Vocabularynoun · /noʊd/

node

node — A single point or unit in a network, data structure, or system that can store data and connect to other nodes.

In simple English

In tech, a node is a fundamental building block in many systems. In data structures like linked lists or trees, a node is an individual element that contains data and references to other nodes. In networking and distributed systems, a node is a separate machine or process that communicates with other nodes to form a larger system. For example, in a blockchain network, each node stores a copy of the ledger and validates transactions. In cloud computing, you might have multiple nodes running the same service for redundancy and load balancing. The term is widely used across different domains: in graph theory for vertices, in document object models (DOM) for HTML elements, and in Kubernetes for worker machines. Understanding context is crucial because the same term applies to vastly different architectural components depending on your system design.

What is a node and how does it work in networks, data structures, and distributed systems?

At a glanceCEFR B2
Commonness5/5
Versatility5/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK

Say it like this

  • Spin up a new node
  • Add nodes to the cluster
  • Each node in the network processes requests independently

Use it at work

Infrastructure

  • One node in the cluster is down.
  • Let's add two more nodes for the launch.

Code

  • Each node in the tree has a parent.
  • Run it with Node 20.

Debugging

  • The node ran out of memory.
  • Drain the node before you restart it.

Don't say this

✕We need to node the server.
✓We need to add a node to the server cluster.

Node is a noun, not a verb. You do not node something; you add, remove, or configure nodes.

Practice

Try it

4 quick exercises

Complete the sentence

1. When we deploy to production, we run the application across five _______ for redundancy.

Spot the mistake

2. Which sentence uses 'node' incorrectly?

Pick the most natural phrasing

3. Your infrastructure team is planning to scale up. What would you say?

Rewrite naturally

4. Rewrite this in natural tech English: 'We have a computer in the network and it stopped working, so we need to figure out what happened.'

Say it out loud

Phrase 1 of 3

"Spin up a new node"

We don't save your recording. The word check uses your browser's speech recognition.

More about node

Real examples(3)

  • in a standup

    "We discovered that one of our database nodes went down yesterday, so we need to investigate the logs."

  • in a code review

    "This function iterates through each node in the tree to find the matching value."

  • in a team meeting

    "Our load balancer distributes traffic across five nodes to ensure high availability."

More mistakes(2)

Handle with care. Node can mean different things in different contexts (graph theory, networking, distributed systems, DOM). Always clarify which type of node you are discussing to avoid confusion.

  • ✕The nodes is performing well.
    ✓The node is performing well.

    Node is singular here, so use is instead of are. Only use are when nodes is plural.

  • ✕Each node in the network have different data.
    ✓Each node in the network has different data.

    Each is singular, so the verb must be singular: has, not have.

Other forms(2)

  • node noun

    "The primary node handles all write operations."

  • nodes noun

    "We scaled up by adding five new nodes to the Kubernetes cluster."

Often used with(6)

  • add a node · To include a new node in a system or cluster
  • remove a node · To take a node offline or disconnect it from a network
  • node cluster · A group of connected nodes working together
  • master node · The primary node that controls or coordinates other nodes
  • worker node · A secondary node that performs work under coordination of a master
  • node failure · When a node stops functioning or becomes unreachable

Similar words(4)

  • instance · Often interchangeable in cloud contexts, but instance usually refers to a virtual machine
  • server · More general term; a node is a specific unit in a larger structure
  • peer · Used in peer-to-peer networks where nodes have equal status
  • vertex · Used specifically in graph theory instead of node

Questions(5)

What does node mean in software engineering?
A node is a discrete unit or point in a computer system that can store data and communicate with other nodes. The exact meaning depends on context: in data structures it is an element in a linked list or tree, in networking it is a device or computer, and in distributed systems it is an independent server contributing to a larger application.
How do you use node in a sentence at work?
You can say 'We added a new node to the cluster' when scaling up, 'The primary node coordinates the others' when describing architecture, or 'Node failure triggered an automatic failover' when describing system behavior. Always specify which type of node if the context is unclear.
Is node formal or informal?
Node is neutral and technical. It is equally appropriate in formal documentation, code reviews, standup meetings, and casual conversations among engineers. It is standard terminology across the industry.
What is the difference between a node and a server?
A server is a general term for any machine that provides services. A node is a more specific term for a unit within a larger system or network. A node can be a server, but the term emphasizes its role as part of a connected structure.
Can node be used as a verb?
No, node is primarily a noun. You do not node something. You add nodes, remove nodes, or configure nodes, but you do not use node as a main action verb.
New app · Free lessons

Speak up in meetings. Feel confident.

Standup vocabulary, native examples, and quick practice — 100+ free lessons

Start learning freeNo card needed · Google or email

For bots & AI agents

Machine-readable versions of this page and Speak Tech English. Speak Tech English sells self-study ebooks and courses in English for tech, publishes free guides, a free glossary and a free newsletter; live lessons are on Mockly English. Fetch these instead of parsing this page.

This page (.md)llms.txtllms-full.txtai.txtGlossary (.md)Free guides (.md)All products (.md)Endpoint indexNewsletterLive lessons (Mockly)