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Groff (software): History & Standards

groff (/ˈdʒiːrɒf/ JEE-roff) (also called GNU troff) is a typesetting system that creates formatted output when given plain text mixed with formatting commands. It is the GNU replacement for the troff and nroff text formatters, which were both developed from the original roff.

Language: English [EN]
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Groff (software) topic overview

The analysis highlights History and Standards as prominent areas in the source structure around Groff (software).

Related topics
21
Source areas
2
Connected nodes
23
Extracted relationships
11
Concept neighborhoods
18
Bridge connections
23

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 · 17 topics
History · 4 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.

Developer
GNU Project
License
2009: GPL-3.0-or-later[a] 1992: GPL-2.0-or-later[b] 1990: GPL-1.0-or-later[c]
Original author
James Clark
Release
June 1990; 36 years ago (1990-06)
Repository
git.savannah.gnu.org/cgit/groff.git
Stable release
1.24.1 / 14 March 2026

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

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 Groff (software) connects Entity context

The extracted context around Groff (software) shows recurring relationship patterns in the source. For example, Groff (software) → GNU Project Another extracted example is Groff (software) → 2009: GPL-3.0-or-later[a] 1992: GPL-2.0-or-later[b] 1990: GPL-1.0-or-later[c]. Use these groups to spot repeated connection types before inspecting the individual relationships.

Groff (software)

Top relations

Developer · 1
Groff (software) → GNU Project
License · 1
Groff (software) → 2009: GPL-3.0-or-later[a] 1992: GPL-2.0-or-later[b] 1990: GPL-1.0-or-later[c]
Original author · 1
Groff (software) → James Clark
Release · 1
Groff (software) → June 1990; 36 years ago (1990-06)
Repository · 1
Groff (software) → git.savannah.gnu.org/cgit/groff.git
Stable release · 1
Groff (software) → 1.24.1 / 14 March 2026
Type · 1
Groff (software) → Typesetting
Website · 1
Groff (software) → gnu.org/software/groff/
Written in · 1
Groff (software) → C++

Important terminology

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

Important terminology

groff troff gnu also standard original including free text typesetting unix software release nroff roff replacement developed systems macros james

Groff (software) relationships Subject–Predicate–Object triples

TTTA extracted 11 structured relationships around Groff (software). Examples in this analysis include Groff (software) → Developer → GNU Project and Groff (software) → License → 2009: GPL-3.0-or-later[a] 1992: GPL-2.0-or-later[b] 1990: GPL-1.0-or-later[c]. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Groff (software)DeveloperGNU Project1.00infobox
Groff (software)License2009: GPL-3.0-or-later[a] 1992: GPL-2.0-or-later[b] 1990: GPL-1.0-or-later[c]1.00infobox
Groff (software)Original authorJames Clark1.00infobox
Groff (software)ReleaseJune 1990; 36 years ago (1990-06)1.00infobox
Groff (software)Repositorygit.savannah.gnu.org/cgit/groff.git1.00infobox
Groff (software)Stable release1.24.1 / 14 March 20261.00infobox
Groff (software)TypeTypesetting1.00infobox
Groff (software)Websitegnu.org/software/groff/1.00infobox
Groff (software)Written inC++1.00infobox
Linuxinstance ofand UNIX derived operating systems0.80text
4.4BSD derivativesinstance ofand UNIX derived operating systems0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Groff (software) bring nearby vocabulary together. In this analysis, examples include Troff, Free and Including. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Groff (software)
    • Troff
    • Free
    • Including
    • Software
    • Gnu
    • Written
    • First
    • Implementation
    • Org
    • Release
    • Stable
    • Systems
  • groff (software)
    • Stable
    • Website
    • Troff
    • Free
    • Including
    • Software
    • Gnu
    • Written
    • First
    • Implementation
    • Org
    • Release
  • gnu
    • Implementation
    • Org
    • Original
    • Roff
    • Text
    • Typesetting
    • Website
    • Troff
    • Including
    • Software
    • Groff
    • Clark
  • troff
    • Free
    • Standard
    • Developed
    • Nroff
    • Replacement
    • Roff
    • Systems
    • Text
    • Unix
    • Software
    • Linux
    • ˈdʒiːrɒf
  • free software
    • Stable
    • Systems
    • Unix
    • Website
    • Software
    • Standard
    • Troff
    • Groff
    • Linux
    • Written
    • First
    • Implementation
  • james clark
    • James
    • Written
    • Implementation
    • June
    • Org
    • Original
    • Release
    • Stable
    • Typesetting
    • Website
    • Including
    • Software
  • nroff
    • Replacement
    • First
    • Original
    • Roff
    • Stable
    • Systems
    • Text
    • Troff
    • Unix
    • Version
    • Free
    • Software
  • text formatters
    • ˈdʒiːrɒf
    • Developed
    • Nroff
    • Original
    • Replacement
    • Roff
    • Troff
    • Typesetting

Connections between topic areas Semantic bridges

For Groff (software), one of the stronger structural bridges in this analysis connects Groff (software) 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
Groff (software) — Overview · splits 6 ⟂ 18
Groff (software) — History · splits 19 ⟂ 5

Map overview Semantic statistics

Groff (software)

Nodes24
Edges23
Triples11
Avg. degree1.92
Density0.083333
Components1

Source & methodology

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

Source: Wikipedia — Groff (software) · EN edition · Analysis: TopicsToTalkAbout

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