theory
Meaning
A theory is an idea or explanation that is based on facts and can be tested.
💡 Don't confuse "theory" with "fact"; a theory is an explanation that may change with new evidence.
Example Sentences
Word in Context
Emma
read
a
short
article
about
how
people
learn
new
words
.
The
article
offered
a
theory
that
regular
practice
and
review
help
memory
,
so
she
decided
to
try
a
simple
plan
.
She
did
small
exercises
every
day
and
wrote
new
words
in
a
notebook
.
If
she
continues
,
she
will
know
many
more
words
in
a
month
.
Common Phrases
scientific theory
theory of evolution
popular theory
Synonyms
Related Words
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