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United States dollar: History, Applications, Measurement & Standards

The United States dollar (symbol: $; currency code: USD) is the official currency of the United States (U.S.) and several other countries. The U.S. Coinage Act of 1792 established the dollar as the base unit, with each dollar divided into 100 cents (symbol: ¢). U.S. banknotes are issued in the form of Federal Reserve Notes, popularly called greenbacks…

Language: English [EN]
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United States dollar topic overview

The analysis highlights History, Applications, Measurement and Standards as prominent areas in the source structure around United States dollar. 2 topics appear in more than one source area, which can help identify connections that are less obvious in a linear reading.

Related topics
438
Source areas
10
Connected nodes
450
Extracted relationships
65
Concept neighborhoods
136
Bridge connections
450

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 137 topics
Pegged currencies · 81 topics
History · 80 topics
Countries that use US dollar · 44 topics
International use as reserve currency · 33 topics
Banknotes · 18 topics
Value · 17 topics
Coins · 16 topics
Monetary policy · 13 topics
Exchange rates · 1 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

.mw-parser-output .nobold{font-weight:normal} .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1⁄100
cent
1⁄10
dime (not a unit in practice)[a]
1⁄1000
mill (accounting only)
Base unit
dollar
cent
cents · ¢
Central bank
Federal Reserve

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Coins

Banknotes

Countries that use US dollar

Monetary policy

International use as reserve currency

Value

Pegged currencies

Exchange rates

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How United States dollar connects Entity context

The extracted context around United States dollar shows recurring relationship patterns in the source. For example, United States dollar → Account, American Silver Eagle, Article, Code, Coins, Congress, Constitution, Dollar, Expenditures, Laws, Money, Penny, Receipts, Section, Spanish, Statement, Statements, The, The Sacagawea, These Another extracted example is United States dollar → Act, Coinage Act, Congress, In, Section, United States. Use these groups to spot repeated connection types before inspecting the individual relationships.

United States dollar

Top relations

related to In the Constitution · 22
United States dollar → Account, American Silver Eagle, Article, Code, Coins, Congress, Constitution, Dollar, Expenditures, Laws, Money, Penny, Receipts, Section, Spanish, Statement, Statements, The, The Sacagawea, These
related to Coinage Act · 6
United States dollar → Act, Coinage Act, Congress, In, Section, United States
Nickname · 5
United States dollar → Ace, bean, bill, bone, buck, deuce, dough, dub, ducat, doubloon, fin, frog, greenback, large, simoleons, skins, smackeroo, smackers, spondulix, Tom, yard, and eagle, Based on denomination:, bucks, dead presidents, green, bones, clams, Plural:, Washingtons, Jeffersons, Lincolns, Hamiltons, Jacksons, Grants, Benjamins, C-note, grand, sawbuck, single, Bluefaces, Blue Strips
Website · 3
United States dollar → bep.gov, federalreserve.gov, usmint.gov
cent · 2
United States dollar → cents, ¢
Freq. used · 2
United States dollar → $1, $5, $10, $20, $50, $100, 1¢ (penny)[b]; 5¢ (nickel), 10¢ (dime), 25¢ (quarter)
mill · 2
United States dollar → mills, ₥
Rarely used · 2
United States dollar → $2 Discontinued, but still legal tender: $500, $1,000, $5,000, $10,000, 50¢ (half dollar), $1 Discontinued, but still legal tender: 1⁄2¢, 2¢, 3¢, 20¢, $2.50, $3, $5, $10, $20[c]
.mw-parser-output .nobold{font-weight:normal} .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1⁄100 · 1
United States dollar → cent
1⁄10 · 1
United States dollar → dime (not a unit in practice)[a]

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

dollar currency gold states united reserve silver federal coins notes value dollars act grains circulation money coin spanish congress standard

United States dollar relationships Subject–Predicate–Object triples

TTTA extracted 65 structured relationships around United States dollar. Examples in this analysis include United States dollar → .mw-parser-output .nobold{font-weight:normal} .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1⁄100 → cent and United States dollar → 1⁄10 → dime (not a unit in practice)[a]. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
United States dollar.mw-parser-output .nobold{font-weight:normal} .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1⁄100cent1.00infobox
United States dollar1⁄10dime (not a unit in practice)[a]1.00infobox
United States dollar1⁄1000mill (accounting only)1.00infobox
United States dollarBase unitdollar1.00infobox
United States dollarcentcents1.00infobox
United States dollarcent¢1.00infobox
United States dollarCentral bankFederal Reserve1.00infobox
United States dollarCodeUSD (numeric: .mw-parser-output .monospaced{font-family:monospace,monospace}840)1.00infobox
United States dollarDate of introductionApril 2, 1792; 234 years ago (1792-04-02)1.00infobox
United States dollarFreq. used$1, $5, $10, $20, $50, $1001.00infobox
United States dollarFreq. used1¢ (penny)[b]; 5¢ (nickel), 10¢ (dime), 25¢ (quarter)1.00infobox
United States dollarInflation3.4% or 3.7%1.00infobox
United States dollarMethodCPI or PCE1.00infobox
United States dollarmillmills1.00infobox
United States dollarmill₥1.00infobox
United States dollarMintUnited States Mint1.00infobox
United States dollarNicknameAce, bean, bill, bone, buck, deuce, dough, dub, ducat, doubloon, fin, frog, greenback, large, simoleons, skins, smackeroo, smackers, spondulix, Tom, yard, and eagle1.00infobox
United States dollarNicknamePlural:1.00infobox
United States dollarNicknamebucks, dead presidents, green, bones, clams1.00infobox
United States dollarNicknameBased on denomination:1.00infobox
United States dollarNicknameWashingtons, Jeffersons, Lincolns, Hamiltons, Jacksons, Grants, Benjamins, C-note, grand, sawbuck, single, Bluefaces, Blue Strips1.00infobox
United States dollarPegged bySee § Pegged currencies1.00infobox
United States dollarPluraldollars1.00infobox
United States dollarPrinterBureau of Engraving and Printing1.00infobox
United States dollarRarely used$2 Discontinued, but still legal tender: $500, $1,000, $5,000, $10,0001.00infobox
United States dollarRarely used50¢ (half dollar), $1 Discontinued, but still legal tender: 1⁄2¢, 2¢, 3¢, 20¢, $2.50, $3, $5, $10, $20[c]1.00infobox
United States dollarReplacedContinental currency Various foreign currencies, including: British sterling Spanish dollar1.00infobox
United States dollarSourceBLS (July 2026) or BEA (June 2026)1.00infobox
United States dollarSubunit0.011.00infobox
United States dollarSymbol$‎1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around United States dollar bring nearby vocabulary together. In this analysis, examples include United, Reserve and Currency. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • United States dollar
    • United
    • Reserve
    • Currency
    • Coins
    • Federal
    • Dollar
    • States
    • Standard
    • Policy
    • International
    • Monetary
    • Act
  • united states dollar
    • United
    • Silver
    • Currency
    • Gold
    • Value
    • Reserve
    • Spanish
    • Coins
    • Federal
    • International
    • Dollar
    • States
  • currency code
    • Dollar
    • Reserve
    • United
    • States
    • International
    • Countries
    • Federal
    • War
    • Gold
    • Dollars
    • Coins
    • Circulation
  • unit of currency
    • Dollar
    • Reserve
    • United
    • States
    • International
    • Countries
    • Federal
    • War
    • Gold
    • Dollars
    • Coins
    • Circulation
  • united states
    • United
    • Reserve
    • Currency
    • Coins
    • Federal
    • Dollar
    • Policy
    • International
    • Monetary
    • Act
    • Notes
    • Dollars
  • several other countries
    • Currencies
    • Used
    • Currency
    • Also
    • United
    • Dollar
    • International
    • Coins
    • Federal
    • Reserve
    • Act
    • Notes
  • coinage act
    • Coinage
    • Standard
    • Grains
    • Congress
    • Silver
    • Tender
    • Dollar
    • Spanish
    • Also
    • United
    • States
    • Fine
  • dollar
    • Silver
    • Currency
    • Gold
    • Value
    • Spanish
    • United
    • International
    • States
    • Standard
    • Coins
    • Act
    • Reserve

Connections between topic areas Semantic bridges

For United States dollar, one of the stronger structural bridges in this analysis connects United States dollar with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
United States dollar — Overview · splits 313 ⟂ 138
United States dollar — Pegged currencies · splits 369 ⟂ 82
United States dollar — History · splits 370 ⟂ 81
United States dollar — Countries that use US dollar · splits 406 ⟂ 45
United States dollar — International use as reserve currency · splits 417 ⟂ 34
United States dollar — Banknotes · splits 432 ⟂ 19
United States dollar — Value · splits 433 ⟂ 18
United States dollar — Coins · splits 434 ⟂ 17
United States dollar — Monetary policy · splits 437 ⟂ 14

Map overview Semantic statistics

United States dollar

Nodes451
Edges450
Triples65
Avg. degree2
Density0.004435
Components1

Source & methodology

TTTA analyzes the structure around United States dollar to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Applications, Measurement & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — United States dollar · EN edition · Analysis: TopicsToTalkAbout

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