toqus
Dictionary
English
한국어
Register
Login
🔍
theory
noun
-
theory
,
theories
a
personal
idea
or
guess
about
why
something
has
happened
or
what
might
be
true
•
My
theory
is
that
the
cat
knocked
the
vase
off
the
shelf
.
My
theory
is
that
the
cat
knocked
the
vase
off
the
shelf
.
•
Do
you
have
a
theory
about
who
will
win
the
game
?
Do
you
have
a
theory
about
who
will
win
the
game
?
noun
-
theory
,
theories
an
idea
or
set
of
ideas
that
explains
how
or
why
something
happens
,
usually
based
on
study
and
evidence
but
not
yet
proven
as
complete
fact
•
Einstein's
theory
of
relativity
changed
how
we
see
time
and
space
.
Einstein's
theory
of
relativity
changed
how
we
see
time
and
space
.
•
The
students
tested
their
new
theory
with
a
simple
experiment
.
The
students
tested
their
new
theory
with
a
simple
experiment
.
from
Late
Latin
theoria
,
from
Greek
theōria
“
contemplation
,
looking
at
”,
from
theōrein
“
to
look
at
,
consider
”
noun
-
theory
,
theories
the
general
principles
and
rules
of
a
subject
,
studied
apart
from
how
they
are
put
into
practice
•
She
understands
music
theory
but
cannot
play
any
instrument
well
.
She
understands
music
theory
but
cannot
play
any
instrument
well
.
•
In
theory
,
the
plan
should
work
,
but
it
might
be
too
expensive
.
In
theory
,
the
plan
should
work
,
but
it
might
be
too
expensive
.
