Seeing :: Seeing (conj. (but originally a present participle)) In view of the fact (that); considering; taking into account (that); insmuch as; since; because; -- followed by a dependent clause; as, he did well, seeing that he was so young..
Sight-seeing :: Sight-seeing (a.) Engaged in, or given to, seeing sights; eager for novelties or curiosities..
Sight-seeing :: Sight-seeing (n.) The act of seeing sights; eagerness for novelties or curiosities.