Definition

To form a theory or set of theories about something; to speculate or hypothesize.

Example

Scientists often theorise about the origins of the universe.

Tense Forms

Conversation

Have you ever tried to theorise about what might happen in the future?

Not really, but it sounds like a fun exercise!

I think it's interesting to theorise about different possibilities.

Yeah, it makes you think creatively about what's ahead.

Synonyms & Antonyms

Root Explanation

The word 'theorise' is derived from 'theoria' (from Greek 'theoria', meaning contemplation or speculation) and the suffix '-ise' (meaning to make or to become). Thus, 'theorise' means to make a theory or to engage in contemplation about a subject.

Memory Tip

Think of 'theoria' as a way of 'contemplating' or 'speculating' about something, which helps you remember that to theorise means to develop a theory.

Visually Confused Words