Synonyms of theories

theories

noun

plural of theory

as in hypotheses

an idea that is the starting point for making a case or conducting an investigation

set out to prove her theory that people can't really taste any difference between colas, so they buy according to the product's image

Synonyms & Similar Words

• hypotheses
• premises
• assumptions
• propositions
• guesses
• theses
• suggestions
• notions
• theorems
• proposals
• feelings
• inferences
• speculations
• impressions
• conjectures
• presumptions
• presuppositions
• suppositions
• generalizations
• concepts
• suspicions
• hunches
• conceptions
• guesswork
• constructs
• abstractions
• surmises
• concessions
• inklings
• proffers

Antonyms & Near Antonyms

• facts
• assurances
• certainties
• knowledges

Example Sentences

Recent Examples of theories

But there are many theories about why people are attracted to true crime, with serial killers being the stars of that world. — Rick Kogan, Chicago Tribune, 28 Oct. 2026

Until then, it was thought bats might’ve emerged somewhere in North America, among other theories. — Jackie Flynn Mogensen, Scientific American, 28 Oct. 2026

Their description of condensates doesn’t rule out earlier theories of spider silk formation. — Yasemin Saplakoglu, Quanta Magazine, 28 Oct. 2026

Researchers propose theories and typologies of madness and offer advice for health-care professionals. — Sam Kestenbaum, Harpers Magazine, 27 Oct. 2026

Unfortunately, Newport Beach’s nighttime fog wasn’t particularly interested in Lovell’s theories about fresh air. — Daniel Cassady, ARTnews.com, 26 Oct. 2026

Over the last month, there have been theories that Congress will not sign the bill into law, that sports betting would survive while iGaming would be banned, and that both industries would be banned. — Eben Novy-Williams, Sportico.com, 26 Oct. 2026

The researchers also explored more exotic scenarios involving additional spatial dimensions and theories that extend beyond Einstein’s general relativity. — Rupendra Brahambhatt, Interesting Engineering, 25 Oct. 2026

After a wave of restaurant closures struck West Midtown in late 2024 and early 2025, theories on the state of the area’s restaurant scene proliferated. — Olivia Wakim, AJC.com, 25 Oct. 2026