1. Preceding all others in time or space or degree Adjective
2. Highest in pitch or chief among parts or voices or instruments or orchestra sections Adjective
3. The first or highest in an ordering or series Noun
4. The first element in a countable series Noun
5. The time at which something is supposed to begin Noun
6. The fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate) Noun
7. An honours degree of the highest class Noun
8. The lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving Noun
9. Before anything else Adverb
10. The initial time Adverb
11. Before another in time, space, or importance Adverb
12. Prominently forward Adverb
13. Indicating the beginning unit in a series Adjective Satellite