Theory
English Dictionary
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Theory Definition
(n)
a
well
-
substantiated
explanation
of
some
aspect
of
the
natural
world
;
an
organized
system
of
accepted
knowledge
that
applies
in
a
variety
of
circumstances
to
explain
a
specific
set
of
phenomena
; "
theories
can
incorporate
facts
and
laws
and
tested
hypothes
(n)
a
tentative
theory
about
the
natural
world
;
a
concept
that
is
not
yet
verified
but
that
if
true
would
explain
certain
facts
or
phenomena
; "
a
scientific
hypothesis
that
survives
experimental
testing
becomes
a
scientific
theory
"; "
he
proposed
a
fresh
theory
(n)
a
belief
that
can
guide
behavior
; "
the
architect
has
a
theory
that
more
is
less
"; "
they
killed
him
on
the
theory
that
dead
men
tell
no
tales
"
Theory Synonyms
hypothesis
possibility
theory
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