先に
1
previously;before;earlier;formerly;recently
2
first;before (something or someone else);ahead (of);earlier
私が先にそこへ着くよ。
I'll get there before you will.
3
beforehand;in advance;ahead of time
その情報は発表するより先に新聞に漏れた。
The information was given away to the newspaper prior to the announcement.
Other forms
曩に 【さきに】 (rarely used kanji form)