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

This means large language models cannot independently invent groundbreaking theories or offer original insights. — Joe McKendrick, Forbes.com, 7 Aug. 2026

Even today, astronomers are still trying to understand exactly how these extraordinary objects form, with recent observations continuing to challenge existing theories about their evolution. — Kaif Shaikh, Interesting Engineering, 6 Aug. 2026

In a dueling report, House Democrats argued Fauci didn't play a role in drafting the paper and wasn't trying to silence other theories. — Joe Walsh, CBS News, 6 Aug. 2026

Observers have offered various theories as to why that number spiked so high last week. — Kelsey Norman, The Conversation, 5 Aug. 2026

The values for nature’s physical constants—from the strength of nuclear forces to the mass of the electron—are not determined by current theories. — Cynthia Zarin, Harpers Magazine, 4 Aug. 2026

Viewed through that lens, the United States and China increasingly appear to be pursuing fundamentally different theories of victory. — Dewardric L. McNeal, CNBC, 2 Aug. 2026

In the early hours of the morning in Australia, theories about potential long-term knee injuries began to gain traction online, with fans scrambling to find the truth about his absence. — Elias Burke, New York Times, 2 Aug. 2026

According to individual needs theories, there is no single ideal amount of sleep, because genetics, age, health, activity level and even life circumstances influence how much sleep someone needs. — Chas Newkey-Burden, TheWeek, 31 July 2026