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So

So is a common English word with multiple grammatical functions. It functions as a conjunction, an adverb, and an interjection, and it also appears in musical notation as the solfege syllable for the fifth scale degree in many systems. Its versatility makes it a frequent discursive and syntactic tool in everyday language.

Etymology and cognates

The word originates from Old English swa or swā, meaning “in that manner, thus, to such a

Usage

As a conjunction, so introduces results or conclusions: “It was raining, so we stayed indoors.” It also

In music, so (often written as sol or so) denotes the fifth note of the major scale

See also

Thus, hence, such, thusness.

degree.”
It
is
related
to
cognates
in
other
Germanic
languages,
such
as
Old
Norse
svá
and
German
so,
and
has
evolved
into
the
modern
English
so
used
today.
The
form
remains
closely
linked
to
its
sense
of
manner,
degree,
and
consequence.
appears
in
constructions
like
so…that
to
express
a
high
degree:
“She
was
so
tired
that
she
couldn’t
continue.”
As
an
adverb
of
degree,
so
modifies
adjectives
and
other
adverbs:
“The
soup
is
so
hot.”
It
can
function
as
an
interjection
or
discourse
marker
at
the
start
of
a
sentence:
“So,
what
happened
next?”
In
certain
set
phrases,
such
as
so
far
or
so
long,
it
participates
in
common
idiomatic
expressions.
in
solfege,
used
in
movable-Do
and
fixed-Do
systems
to
indicate
pitch.