The set of authoritative websites that offer comprehensive glossaries of sports terminology, covering general terms as well as sport‑specific jargon.
https://en.wikipedia.org/wiki/Glossary_of_association_football_terms
An extensive A‑Z glossary of football (soccer) terminology as used in rules, tactics, roles, and slang.
https://en.wikipedia.org/wiki/Glossary_of_cricket_terms
Comprehensive glossary covering cricket‑specific jargon, fielding positions, delivery types and more.
https://en.wikipedia.org/wiki/Glossary_of_tennis_terms
Definitions of tennis‑specific terms such as ‘half‑volley’, ‘Hawk‑Eye’, ‘break’, and more.
https://en.wikipedia.org/wiki/Glossary_of_cue_sports_terms
Terminology used in cue and billiards sports—including pool, snooker and carom—explained in English.
https://en.wikipedia.org/wiki/Glossary_of_skiing_and_snowboarding_terms
Key jargon and terminology for skiing and snowboarding, especially useful for winter sports fans.
https://www.topendsports.com/resources/definitions.htm
A general sports dictionary offering definitions of common sporting terms across many sports.
https://operations.nfl.com/learn-the-game/nfl-basics/terms-glossary
Alphabetical glossary of American football terms covering positions, fouls, scoring, field layout, etc., from the NFL.