adv

• (formal, somewhat dated) For example; for instance. (Compare such as.)
  "Likewise many other indulgences were by virtue hereof granted; as, to have a portatile altar, to receive the Sacrament privately; […]"

conj

• (dated) Introducing a comparison with a hypothetical state (+ subjunctive, or with the verb elided): as though, as if.
  "And sodenly there cam a sounde from heven as it had bene the commynge off a myghty wynde […]"
• (law) used before a preposition to clarify that the prepositional phrase restricts the meaning of the sentence; specifically.
  "The case is dismissed as between Jones and Smith."
• (rare, now England, Midland US and Southern US, possibly obsolete) Than.
  "The king was not more forward to bestow favours on them as they free to deal affronts to others their superiors."

noun

• (unit of weight) A libra.
• (numismatics, Ancient Rome) Any of several coins of Rome, coined in bronze or later copper; or the equivalent value.

noun

• (rare) Alternative form of a's.