Glossary OS

Plain meaning

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A crypto slang term originating from a 2013 Bitcoin forum typo of 'hold,' now a backronym for 'Hold On for Dear Life.' It describes the strategy of buying and holding cryptocurrency long-term regardless of price volatility, rather than actively trading. HODLing reflects conviction that long-term price appreciation will outweigh short-term losses. The term has become a core part of crypto culture and community identity.

Mental model

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Technical context

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Wallets, signing flows, dApps, and key management concepts.

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HODL (hodl)
Category: Web3
Definition: A crypto slang term originating from a 2013 Bitcoin forum typo of 'hold,' now a backronym for 'Hold On for Dear Life.' It describes the strategy of buying and holding cryptocurrency long-term regardless of price volatility, rather than actively trading. HODLing reflects conviction that long-term price appreciation will outweigh short-term losses. The term has become a core part of crypto culture and community identity.
Related: DYOR (Do Your Own Research), FOMO (Fear Of Missing Out)

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Concept graph

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Branch

DYOR (Do Your Own Research)

A widely used crypto community phrase encouraging individuals to independently investigate projects, tokens, and protocols before investing or participating. DYOR means reading documentation, checking audit reports, verifying team backgrounds, reviewing on-chain data, and understanding tokenomics rather than relying solely on social media hype or influencer recommendations. The phrase serves as both advice and a disclaimer in crypto discussions.

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Branch

FOMO (Fear Of Missing Out)

The anxiety-driven urge to buy a token or enter a position because its price is rising rapidly and others appear to be profiting. FOMO often leads to impulsive decisions such as buying at market peaks without proper research, chasing pumps, or over-allocating to a single asset. Recognizing FOMO as an emotional bias rather than a rational signal is a key skill for managing risk in crypto markets.

FUD (Fear, Uncertainty, and Doubt)Degen

Open term

Next concepts to explore

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Web3

DYOR (Do Your Own Research)

A widely used crypto community phrase encouraging individuals to independently investigate projects, tokens, and protocols before investing or participating. DYOR means reading documentation, checking audit reports, verifying team backgrounds, reviewing on-chain data, and understanding tokenomics rather than relying solely on social media hype or influencer recommendations. The phrase serves as both advice and a disclaimer in crypto discussions.

Open term

Web3

FOMO (Fear Of Missing Out)

The anxiety-driven urge to buy a token or enter a position because its price is rising rapidly and others appear to be profiting. FOMO often leads to impulsive decisions such as buying at market peaks without proper research, chasing pumps, or over-allocating to a single asset. Recognizing FOMO as an emotional bias rather than a rational signal is a key skill for managing risk in crypto markets.

Open term

Web3

Hot Wallet

A cryptocurrency wallet that is connected to the internet, enabling quick and convenient access for sending, receiving, and interacting with dApps. Browser extension wallets (Phantom, Backpack, Solflare) and mobile wallets are hot wallets. They offer the best user experience for daily transactions and DeFi activity but are more vulnerable to phishing, malware, and remote attacks compared to cold storage. Best practice is to keep only actively used funds in a hot wallet.

Open term

Web3

Hardware Wallet

A physical device (Ledger, Trezor) that stores private keys offline in a secure element chip, signing transactions without exposing keys to internet-connected computers. Hardware wallets protect against malware, phishing, and remote hacks. Solana hardware wallet support is available through Phantom, Solflare, and other wallet adapters.

Open term

Related terms

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Web3dyor

DYOR (Do Your Own Research)

A widely used crypto community phrase encouraging individuals to independently investigate projects, tokens, and protocols before investing or participating. DYOR means reading documentation, checking audit reports, verifying team backgrounds, reviewing on-chain data, and understanding tokenomics rather than relying solely on social media hype or influencer recommendations. The phrase serves as both advice and a disclaimer in crypto discussions.

Open term

Web3fomo

FOMO (Fear Of Missing Out)

The anxiety-driven urge to buy a token or enter a position because its price is rising rapidly and others appear to be profiting. FOMO often leads to impulsive decisions such as buying at market peaks without proper research, chasing pumps, or over-allocating to a single asset. Recognizing FOMO as an emotional bias rather than a rational signal is a key skill for managing risk in crypto markets.

Open term

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Web3

The vision of a decentralized internet built on blockchain technology, where users own their data, identity, and digital assets. Web1 was read-only (static pages), Web2 is read-write (platforms like social media), Web3 is read-write-own (permissionless, user-sovereign). Web3 applications use wallets instead of logins and smart contracts instead of centralized servers.

Open term

Web3

dApp (Decentralized Application)

An application with its backend logic running on a blockchain as smart contracts rather than centralized servers. dApps typically have a traditional web frontend that interacts with on-chain programs via RPC. Users authenticate with wallets instead of username/password. Examples: Uniswap (Ethereum DEX), Jupiter (Solana DEX), Magic Eden (NFT marketplace).

Open term

Web3

Wallet

Software or hardware that manages cryptographic keys and enables users to sign transactions, view balances, and interact with dApps. Hot wallets (Phantom, Solflare, Backpack) are internet-connected for convenience. Cold wallets (Ledger, Trezor) store keys offline for security. Wallets don't actually 'hold' tokens—they hold the private keys that control on-chain accounts.

Open term

Web3

Seed Phrase (Mnemonic)

A 12 or 24-word human-readable backup of a wallet's master private key, generated using BIP-39 standard. The seed phrase can deterministically regenerate all derived keypairs (BIP-44 derivation paths). Losing the seed phrase means permanently losing access to all associated accounts. Never share, photograph, or store seed phrases digitally in plain text.

Open term