conjunction:while; during the time that
As the meeting began, the lights flickered.
conjunction:because; since
As it was late, we took a taxi.
conjunction:although; even though
Tired as he was, he finished the report.
preposition:in the role, function, or capacity of
He works as a consultant.
adverb:used in comparisons to indicate the same degree or amount
She is as tall as her older brother.
adverb:in the manner that; in the way that
Do as I instructed and you’ll finish on time.
