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

Some universities have a long standing tradition of continually testing students’ ability to explain and rationalise their theories. — Reynald Fasciaux, Fortune, 8 Oct. 2026

But when the 17-year-old Russian returns what seems like moments later with a solution to significantly advance the theories outlined in the paper, the professor finds himself with a new research partner. — David Rooney, HollywoodReporter, 6 Oct. 2026

Set across 12 days, 22 players emulate the TV show at the castle by building trust with other players during missions as well as building believable theories during The Round Table. — Tanya Fedak, Variety, 6 Oct. 2026

While sometimes the origin is clear, often there are competing theories. — Jim Dudlicek, Chicago Tribune, 4 Oct. 2026

Once Robinson was arrested for Charlie’s murder, the theories only multiplied. — Clara Molot, Vanity Fair, 29 Sep. 2026

Refusing to believe that the ancestors of Native Americans could have built such monumental structures, writers floated bizarre theories as to who had. — Daniel Immerwahr, New Yorker, 28 Sep. 2026

That means the early universe wasn't as pure and unspoiled as previously believed, potentially impacting our theories of cosmic evolution. — Robert Lea, Space.com, 25 Sep. 2026

The undeniable message of AdS/CFT is that, at least in this special snow globe, the rules of gravity and the rules of quantum mechanics are secretly describing the same game — despite the storied antagonism between the two theories. — Quanta Magazine, 25 Sep. 2026