1 as /ˈæz/ /əz/ adverb
1 as
/ˈæz/ /əz/
Learner's definition of AS
: to the same degree or amount
formal used to introduce an example
2 as /ˈæz/ /əz/ conjunction
2 as
/ˈæz/ /əz/
Learner's definition of AS
used to make comparisons
usually used in the phrase as…as
sometimes used in negative phrases with so
used in the phrase as…as to say when something should be done, how often something should happen, etc.
: in the way that
used to introduce a statement which indicates that something being mentioned was known, expected, etc.
used in phrases with same
: while or when
: regardless of the degree to which : though
formal : for the reason that : because
used to indicate that one relationship is like another relationship
used with so or such to indicate the result or effect of something
see also so as (below)

as against

: in comparison to (something)

as for

: with regard to : concerning

as from

chiefly British
used to indicate the time or date when something begins

as if

or as though
: the way it would be if
: as someone would do if
used in spoken phrases to say that something is not true, will not happen, etc.
◊ The phrase as if is sometimes used informally as an interjection to say that something suggested or claimed is impossible or very unlikely.

as is

chiefly US
: in the present condition without any changes

as it is

: in the present condition
: with the situation that exists now

as it were

used to say that a statement is true or accurate in a certain way even if it is not literally or completely true

as of

used to indicate the time or date when something begins

as to

: 2about

as was

British, informal
: formerly, originally used after a former name

so as

used to indicate the purpose of something
see also 2as 7 (above)
3 as /ˈæz/ /əz/ preposition
3 as
/ˈæz/ /əz/
Learner's definition of AS
used to indicate how a person or thing appears, is thought of, etc.
used to indicate the condition, role, job, etc., of someone or something