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theory
Language
Watch
Edit
theory
is on the Academic Word List.
Pronunciation
change
(
UK
)
IPA
(
key
)
:
/ˈθɪəri/
or
/ˈθiːəri/
or
/ˈθɪri/
(
US
)
IPA
(
key
)
:
/ˈθiːəri/
or
/ˈθɪri/
Audio (US)
(
file
)
Noun
change
Singular
theory
Plural
theories
Theory
is on the
Academic Vocabulary List
.
(
countable
) A
theory
is an idea that tries to
explain
an
observation
.
The new information showed that his
theory
about growth was incorrect.
Nobody has disproved Einstein's
theory
of general relativity.
Related words
change
theorist
