an
(noun, conjunction, article, preposition)
article
1. Form, used before a vowel sound, of a
2. (rare, nonstandard) Form of a used by a few speakers and writers before /h/, especially if weakly pronounced.
conjunction
1. (archaic) If, so long as.
- An it please you, my lord.
2. (archaic) as if; as though.
preposition
1. In each; to or for each; per.
- I was only going twenty miles an hour.