1. Noun

   point; tip; end; nozzle

   鉛筆の先が丸くなった。

2. head (of a line); front

3. first; before; ahead (of)

4. (the way) ahead; beyond

5. Noun, Noun which may take the genitive case particle 'no'

   future

6. Noun which may take the genitive case particle 'no', Noun

   previous; prior; former; recent; last

7. Noun, Noun, used as a suffix

   destination; address; place where you do something

8. Noun

   rest (e.g. of a story); continuation; remaining part

9. the other party

Also written 前【さき】saki、先き【さき】saki