conjunction
used to introduce the second or last of two or more things or people that are being compared; used with the comparative form of an adjective or adverb
used to say that something happens immediately after something else
preposition
when compared to - used with pronouns in the objective case (me, her, him, them, and us) in the same way that the conjunction than is used with pronouns in the subjective case (I, she, he, they, and we)
none other than