English for Web3 and NFT Developers

Web3 and NFT development combine cryptography, distributed systems, and a rapidly evolving product vocabulary that even experienced engineers new to the space find disorienting. Terms like “minting,” “gas,” and “custodial” carry precise technical and financial meaning, and getting them right matters both for clear engineering communication and for accurately describing risk to users and stakeholders.

Key Vocabulary

Minting The process of creating a new token on a blockchain — for an NFT, this means generating a unique token and recording its ownership and metadata on-chain for the first time. Example: “The minting transaction failed because the user’s wallet didn’t have enough funds to cover the gas fee, not because of a bug in our contract.”

Gas fee The transaction fee paid to the network to process and validate an operation on a blockchain, which varies based on network congestion and the computational complexity of the operation. Example: “We batched these operations into a single transaction to reduce the total gas fee compared to minting each token individually.”

Wallet (custodial vs. non-custodial) A custodial wallet is one where a third party (like an exchange) holds the private keys on the user’s behalf; a non-custodial wallet gives the user sole control of their private keys. Example: “Users onboarding through our custodial wallet don’t need to manage a seed phrase, but that also means we’re responsible for securing their keys.”

Smart contract Self-executing code deployed on a blockchain that automatically enforces the terms of an agreement once its conditions are met, without requiring a trusted intermediary. Example: “The smart contract automatically transfers royalties to the original creator every time the NFT is resold on a supporting marketplace.”

On-chain vs. off-chain “On-chain” refers to data or logic that lives directly on the blockchain and is verified by network consensus; “off-chain” refers to data or processing that happens outside the blockchain, often for cost or performance reasons. Example: “We store the NFT’s ownership record on-chain, but the actual image file is stored off-chain, with only a content hash referenced on-chain.”

Token standard (ERC-721, ERC-1155) A published specification defining how tokens of a certain type behave on a blockchain — ERC-721 defines unique, non-fungible tokens, while ERC-1155 supports both fungible and non-fungible tokens in a single contract. Example: “We’re using ERC-1155 instead of ERC-721 because we need to support both unique collectible items and a fungible in-game currency in one contract.”

Signature / signing a transaction The cryptographic process by which a wallet holder authorizes a transaction using their private key, proving they consent to the operation without revealing the key itself. Example: “The user needs to sign this transaction in their wallet before we can submit it to the network — we can’t do that on their behalf.”

Reentrancy A smart contract vulnerability where an external call allows a malicious contract to re-enter the calling function before its first invocation completes, potentially draining funds. Example: “We added a reentrancy guard around the withdrawal function after the audit flagged it as a risk.”

Common Phrases

In code reviews:

• “This function transfers funds before updating the internal balance — that ordering is exactly the pattern that enables reentrancy attacks.”
• “We’re not checking the return value of this external call, so a failed transfer would silently succeed from the contract’s perspective.”
• “This mint function doesn’t cap the total supply — we should add that constraint before deployment, since contracts are effectively immutable once live.”

In standups:

• “Yesterday I finished the gas optimization pass on the batch minting function; today I’m getting the contract ready for the security audit.”
• “I’m blocked on wallet connection — the new wallet provider’s SDK handles chain switching differently than the one we tested against.”
• “I fixed a bug where the frontend displayed stale ownership data because it wasn’t listening for the on-chain transfer event.”

In product/stakeholder conversations:

• “If gas fees spike during network congestion, users may abandon the mint flow — should we set a maximum gas price and show a clear warning instead of letting it fail silently?”
• “This feature requires an on-chain transaction, so there will always be a small delay for block confirmation — we should design the UI around that wait, not against it.”
• “Choosing a custodial wallet lowers onboarding friction, but it also means we take on custody risk and responsibility that a non-custodial approach avoids.”

Phrases to Avoid

Saying “it’s on the blockchain” as if that alone guarantees correctness or security. Being on-chain means data is tamper-evident and consensus-verified — it does not mean the underlying logic is bug-free or the data itself is accurate. Say instead: “the record is on-chain and can’t be altered after the fact, but the contract logic still needs to be audited for correctness.”

Saying “the transaction failed” without specifying the reason. Distinguish between “the transaction reverted” (the contract explicitly rejected it), “it ran out of gas,” and “it’s still pending” (not yet confirmed) — these require completely different fixes and different messaging to the user.

Saying “crypto wallet” when precision about custody matters. In discussions involving security or user funds, specify custodial versus non-custodial explicitly, since the responsibility and risk profile differ significantly between the two.

Quick Reference

Key Takeaways

• Distinguish custodial from non-custodial wallets precisely — the risk and responsibility profile differs significantly between them.
• Being “on-chain” guarantees tamper-evidence and consensus verification, not correctness — never conflate the two when discussing security.
• Specify the exact reason a transaction failed (reverted, out of gas, still pending) rather than saying it generically “failed.”
• Reentrancy and similar smart contract vulnerabilities deserve precise, named vocabulary in code reviews — vague warnings get missed.
• Frame on-chain latency (block confirmation time) as a UX design constraint to plan around, not an unexpected failure to work around after the fact.

Bridging the Gap: Addressing Specific Concerns of Non-Native Speakers

The core vocabulary we’ve covered – smart contracts, ERC-721, gas fees, wallets, and so on – is foundational for any Web3 developer. However, for developers whose first language isn’t English, navigating the nuances of technical communication can be significantly more challenging than simply understanding definitions. It’s not just about knowing what a ‘gas limit’ is; it’s about articulating that concept clearly and confidently in a professional setting, particularly when collaborating with international teams or documenting complex code. A common struggle arises from differences in phrasing around risk assessment – concepts like “potential vulnerabilities” might be expressed differently depending on cultural background. Similarly, the level of detail expected in documentation varies greatly, leading to misunderstandings if expectations aren’t clearly aligned.

One particular area where this manifests is during code reviews. Receiving a comment such as “This could be more gas-efficient” can feel vague and potentially accusatory for someone learning English. It’s crucial to translate that into something actionable. Instead of simply accepting the feedback, a developer might respond with: “I understand the concern about gas efficiency. Could you elaborate on which specific areas you recommend optimizing? Perhaps we could explore using batch operations or reducing the size of the transaction?” This demonstrates engagement and a willingness to learn while clarifying the request. Furthermore, proactively stating assumptions – like “I’ve considered potential scaling issues with this implementation” – can preempt misunderstandings and foster trust.

Another frequent scenario involves Pull Requests (PRs). Writing a clear PR description is paramount. A good example would be: “Implemented NFT minting logic for the ‘Celestial Collection’ based on the design specifications outlined in [link to Figma]. This PR includes unit tests covering key functionality, including successful minting and error handling for insufficient wallet balance. I’ve added comments within the code highlighting areas where gas optimization is a potential concern – these are flagged for further review by the team.” The inclusion of specific details like “unit tests” and referencing external documentation immediately provides context for reviewers who may not be intimately familiar with the project’s roadmap or design choices.

Finally, remember that precise language matters when discussing technical debt. Saying something like “This is a quick fix” can convey a lack of commitment to long-term maintainability. Instead, phrase it as: “This addresses the immediate issue but requires further investigation into potential scalability bottlenecks and refactoring for improved code quality in subsequent iterations.”

# Example using ethers.js to estimate gas costs (simplified)
import { ethers } from 'ethers';

const contractAddress = '0xYourContractAddressHere';
const abi = '[Your Contract ABI Here]';

const provider = new ethers.providers.JsonRpcProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID'); // Replace with your Infura project ID

async function estimateGas(functionName, ...args) {
  const contract = new ethers.Contract(contractAddress, abi, provider);
  const gasEstimate = await contract[functionName](...args).estimateGas({ from: '0xYourWalletAddressHere' }); // Replace with your wallet address
  console.log(`Estimated Gas for ${functionName}: ${gasEstimate}`);
}

// Example call - replace with your actual function and arguments
estimateGas('mintNFT', 'tokenURI', 'uniqueTokenId');

This simple example demonstrates the kind of practical application where precise terminology is crucial – understanding and communicating gas costs, a fundamental concern in Web3 development. Focus on clear, detailed communication, and proactively seeking clarification when needed; these are invaluable skills for any developer, regardless of native language proficiency.